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Finding the Fourth Proportional to 118,050.41, 176,979.13 and 54,909.90

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Solution

The fourth proportional to 118,050.41, 176,979.13 and 54,909.90 is: 82,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,050.41 : 176,979.13 = 54,909.90 : x
  2. Step 2: Convert to fraction form
    118,050.41/176,979.13 = 54,909.90/x
  3. Step 3: Cross multiply
    118,050.41x = 176,979.13 × 54,909.90
  4. Step 4: Simplify right side
    118,050.41x = 9,717,906,193.11
  5. Step 5: Solve for x
    x = 9,717,906,193.11/118,050.41
  6. Step 6: Final answer
    x = 82,319.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.