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Finding the Fourth Proportional to 68,045,599.80, 102,068,399.70 and 68,045,599.80

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Solution

The fourth proportional to 68,045,599.80, 102,068,399.70 and 68,045,599.80 is: 102,068,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,045,599.80 : 102,068,399.70 = 68,045,599.80 : x
  2. Step 2: Convert to fraction form
    68,045,599.80/102,068,399.70 = 68,045,599.80/x
  3. Step 3: Cross multiply
    68,045,599.80x = 102,068,399.70 × 68,045,599.80
  4. Step 4: Simplify right side
    68,045,599.80x = 6,945,305,478,212,640
  5. Step 5: Solve for x
    x = 6,945,305,478,212,640/68,045,599.80
  6. Step 6: Final answer
    x = 102,068,399.70

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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.