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Finding the Fourth Proportional to 113,717.55, 156,931.11 and 62,732.10

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Solution

The fourth proportional to 113,717.55, 156,931.11 and 62,732.10 is: 86,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,717.55 : 156,931.11 = 62,732.10 : x
  2. Step 2: Convert to fraction form
    113,717.55/156,931.11 = 62,732.10/x
  3. Step 3: Cross multiply
    113,717.55x = 156,931.11 × 62,732.10
  4. Step 4: Simplify right side
    113,717.55x = 9,844,618,085.63
  5. Step 5: Solve for x
    x = 9,844,618,085.63/113,717.55
  6. Step 6: Final answer
    x = 86,570.79

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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.