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Finding the Fourth Proportional to 113,479.52, 156,600.52 and 62,491.28

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Solution

The fourth proportional to 113,479.52, 156,600.52 and 62,491.28 is: 86,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,479.52 : 156,600.52 = 62,491.28 : x
  2. Step 2: Convert to fraction form
    113,479.52/156,600.52 = 62,491.28/x
  3. Step 3: Cross multiply
    113,479.52x = 156,600.52 × 62,491.28
  4. Step 4: Simplify right side
    113,479.52x = 9,786,166,943.47
  5. Step 5: Solve for x
    x = 9,786,166,943.47/113,479.52
  6. Step 6: Final answer
    x = 86,237.30

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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.