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Finding the Fourth Proportional to 113,693.88, 156,895.42 and 62,711.37

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Solution

The fourth proportional to 113,693.88, 156,895.42 and 62,711.37 is: 86,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,693.88 : 156,895.42 = 62,711.37 : x
  2. Step 2: Convert to fraction form
    113,693.88/156,895.42 = 62,711.37/x
  3. Step 3: Cross multiply
    113,693.88x = 156,895.42 × 62,711.37
  4. Step 4: Simplify right side
    113,693.88x = 9,839,126,734.93
  5. Step 5: Solve for x
    x = 9,839,126,734.93/113,693.88
  6. Step 6: Final answer
    x = 86,540.51

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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.