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Finding the Fourth Proportional to 118,520.60, 177,781.08 and 48,399.92

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Solution

The fourth proportional to 118,520.60, 177,781.08 and 48,399.92 is: 72,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.60 : 177,781.08 = 48,399.92 : x
  2. Step 2: Convert to fraction form
    118,520.60/177,781.08 = 48,399.92/x
  3. Step 3: Cross multiply
    118,520.60x = 177,781.08 × 48,399.92
  4. Step 4: Simplify right side
    118,520.60x = 8,604,590,049.51
  5. Step 5: Solve for x
    x = 8,604,590,049.51/118,520.60
  6. Step 6: Final answer
    x = 72,599.95

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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.