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Finding the Fourth Proportional to 363,793.02, 545,691.69 and 126,970.08

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Solution

The fourth proportional to 363,793.02, 545,691.69 and 126,970.08 is: 190,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,793.02 : 545,691.69 = 126,970.08 : x
  2. Step 2: Convert to fraction form
    363,793.02/545,691.69 = 126,970.08/x
  3. Step 3: Cross multiply
    363,793.02x = 545,691.69 × 126,970.08
  4. Step 4: Simplify right side
    363,793.02x = 69,286,517,534.64
  5. Step 5: Solve for x
    x = 69,286,517,534.64/363,793.02
  6. Step 6: Final answer
    x = 190,455.87

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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.