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Finding the Fourth Proportional to 127,457.52, 175,871.68 and 73,747.54

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Solution

The fourth proportional to 127,457.52, 175,871.68 and 73,747.54 is: 101,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457.52 : 175,871.68 = 73,747.54 : x
  2. Step 2: Convert to fraction form
    127,457.52/175,871.68 = 73,747.54/x
  3. Step 3: Cross multiply
    127,457.52x = 175,871.68 × 73,747.54
  4. Step 4: Simplify right side
    127,457.52x = 12,970,103,755.67
  5. Step 5: Solve for x
    x = 12,970,103,755.67/127,457.52
  6. Step 6: Final answer
    x = 101,760.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.