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Finding the Fourth Proportional to 113,735.86, 156,960.94 and 63,425.14

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Solution

The fourth proportional to 113,735.86, 156,960.94 and 63,425.14 is: 87,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,735.86 : 156,960.94 = 63,425.14 : x
  2. Step 2: Convert to fraction form
    113,735.86/156,960.94 = 63,425.14/x
  3. Step 3: Cross multiply
    113,735.86x = 156,960.94 × 63,425.14
  4. Step 4: Simplify right side
    113,735.86x = 9,955,269,594.03
  5. Step 5: Solve for x
    x = 9,955,269,594.03/113,735.86
  6. Step 6: Final answer
    x = 87,529.73

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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.