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Finding the Fourth Proportional to 113,712.52, 156,973.71 and 73,445.92

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Solution

The fourth proportional to 113,712.52, 156,973.71 and 73,445.92 is: 101,387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,712.52 : 156,973.71 = 73,445.92 : x
  2. Step 2: Convert to fraction form
    113,712.52/156,973.71 = 73,445.92/x
  3. Step 3: Cross multiply
    113,712.52x = 156,973.71 × 73,445.92
  4. Step 4: Simplify right side
    113,712.52x = 11,529,078,154.33
  5. Step 5: Solve for x
    x = 11,529,078,154.33/113,712.52
  6. Step 6: Final answer
    x = 101,387.94

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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.