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Finding the Fourth Proportional to 123,792.20, 185,761.20 and 44,914.40

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Solution

The fourth proportional to 123,792.20, 185,761.20 and 44,914.40 is: 67,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,792.20 : 185,761.20 = 44,914.40 : x
  2. Step 2: Convert to fraction form
    123,792.20/185,761.20 = 44,914.40/x
  3. Step 3: Cross multiply
    123,792.20x = 185,761.20 × 44,914.40
  4. Step 4: Simplify right side
    123,792.20x = 8,343,352,841.28
  5. Step 5: Solve for x
    x = 8,343,352,841.28/123,792.20
  6. Step 6: Final answer
    x = 67,398.05

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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.