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Finding the Fourth Proportional to 113,745.92, 156,970.04 and 62,757.86

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Solution

The fourth proportional to 113,745.92, 156,970.04 and 62,757.86 is: 86,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,745.92 : 156,970.04 = 62,757.86 : x
  2. Step 2: Convert to fraction form
    113,745.92/156,970.04 = 62,757.86/x
  3. Step 3: Cross multiply
    113,745.92x = 156,970.04 × 62,757.86
  4. Step 4: Simplify right side
    113,745.92x = 9,851,102,695.87
  5. Step 5: Solve for x
    x = 9,851,102,695.87/113,745.92
  6. Step 6: Final answer
    x = 86,606.21

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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.