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Finding the Fourth Proportional to 363,562.89, 545,593.47 and 126,905.61

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Solution

The fourth proportional to 363,562.89, 545,593.47 and 126,905.61 is: 190,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,562.89 : 545,593.47 = 126,905.61 : x
  2. Step 2: Convert to fraction form
    363,562.89/545,593.47 = 126,905.61/x
  3. Step 3: Cross multiply
    363,562.89x = 545,593.47 × 126,905.61
  4. Step 4: Simplify right side
    363,562.89x = 69,238,872,122.37
  5. Step 5: Solve for x
    x = 69,238,872,122.37/363,562.89
  6. Step 6: Final answer
    x = 190,445.38

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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.