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Finding the Fourth Proportional to 68,961,942,000.80, 103,442,913,001.20 and 68,961,942,000.80

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Solution

The fourth proportional to 68,961,942,000.80, 103,442,913,001.20 and 68,961,942,000.80 is: 103,442,913,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,961,942,000.80 : 103,442,913,001.20 = 68,961,942,000.80 : x
  2. Step 2: Convert to fraction form
    68,961,942,000.80/103,442,913,001.20 = 68,961,942,000.80/x
  3. Step 3: Cross multiply
    68,961,942,000.80x = 103,442,913,001.20 × 68,961,942,000.80
  4. Step 4: Simplify right side
    68,961,942,000.80x = 7,133,624,166,782,555,127,808
  5. Step 5: Solve for x
    x = 7,133,624,166,782,555,127,808/68,961,942,000.80
  6. Step 6: Final answer
    x = 103,442,913,001.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.