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Finding the Fourth Proportional to 118,873.17, 164,061.80 and 73,565.74

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Solution

The fourth proportional to 118,873.17, 164,061.80 and 73,565.74 is: 101,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873.17 : 164,061.80 = 73,565.74 : x
  2. Step 2: Convert to fraction form
    118,873.17/164,061.80 = 73,565.74/x
  3. Step 3: Cross multiply
    118,873.17x = 164,061.80 × 73,565.74
  4. Step 4: Simplify right side
    118,873.17x = 12,069,327,722.73
  5. Step 5: Solve for x
    x = 12,069,327,722.73/118,873.17
  6. Step 6: Final answer
    x = 101,531.13

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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.