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Finding the Fourth Proportional to 118,167.40, 177,251.10 and 80,842.60

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Solution

The fourth proportional to 118,167.40, 177,251.10 and 80,842.60 is: 121,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,167.40 : 177,251.10 = 80,842.60 : x
  2. Step 2: Convert to fraction form
    118,167.40/177,251.10 = 80,842.60/x
  3. Step 3: Cross multiply
    118,167.40x = 177,251.10 × 80,842.60
  4. Step 4: Simplify right side
    118,167.40x = 14,329,439,776.86
  5. Step 5: Solve for x
    x = 14,329,439,776.86/118,167.40
  6. Step 6: Final answer
    x = 121,263.90

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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.