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Finding the Fourth Proportional to 118,294.53, 163,248.92 and 64,581.81

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Solution

The fourth proportional to 118,294.53, 163,248.92 and 64,581.81 is: 89,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,294.53 : 163,248.92 = 64,581.81 : x
  2. Step 2: Convert to fraction form
    118,294.53/163,248.92 = 64,581.81/x
  3. Step 3: Cross multiply
    118,294.53x = 163,248.92 × 64,581.81
  4. Step 4: Simplify right side
    118,294.53x = 10,542,910,734.15
  5. Step 5: Solve for x
    x = 10,542,910,734.15/118,294.53
  6. Step 6: Final answer
    x = 89,124.25

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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.