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Finding the Fourth Proportional to 118,872.57, 164,060.96 and 73,565.16

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Solution

The fourth proportional to 118,872.57, 164,060.96 and 73,565.16 is: 101,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872.57 : 164,060.96 = 73,565.16 : x
  2. Step 2: Convert to fraction form
    118,872.57/164,060.96 = 73,565.16/x
  3. Step 3: Cross multiply
    118,872.57x = 164,060.96 × 73,565.16
  4. Step 4: Simplify right side
    118,872.57x = 12,069,170,772.15
  5. Step 5: Solve for x
    x = 12,069,170,772.15/118,872.57
  6. Step 6: Final answer
    x = 101,530.33

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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.