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Finding the Fourth Proportional to 247,795,489.80, 371,693,234.70 and 151,049,608.20

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Solution

The fourth proportional to 247,795,489.80, 371,693,234.70 and 151,049,608.20 is: 226,574,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,795,489.80 : 371,693,234.70 = 151,049,608.20 : x
  2. Step 2: Convert to fraction form
    247,795,489.80/371,693,234.70 = 151,049,608.20/x
  3. Step 3: Cross multiply
    247,795,489.80x = 371,693,234.70 × 151,049,608.20
  4. Step 4: Simplify right side
    247,795,489.80x = 56,144,117,472,025,640
  5. Step 5: Solve for x
    x = 56,144,117,472,025,640/247,795,489.80
  6. Step 6: Final answer
    x = 226,574,412.30

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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.