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Finding the Fourth Proportional to 119,868,000.80, 179,802,001.20 and 119,868,000.80

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Solution

The fourth proportional to 119,868,000.80, 179,802,001.20 and 119,868,000.80 is: 179,802,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,868,000.80 : 179,802,001.20 = 119,868,000.80 : x
  2. Step 2: Convert to fraction form
    119,868,000.80/179,802,001.20 = 119,868,000.80/x
  3. Step 3: Cross multiply
    119,868,000.80x = 179,802,001.20 × 119,868,000.80
  4. Step 4: Simplify right side
    119,868,000.80x = 21,552,506,423,683,200
  5. Step 5: Solve for x
    x = 21,552,506,423,683,200/119,868,000.80
  6. Step 6: Final answer
    x = 179,802,001.20

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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.