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Finding the Fourth Proportional to 363,387.90, 545,040.24 and 97,169.17

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Solution

The fourth proportional to 363,387.90, 545,040.24 and 97,169.17 is: 145,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,387.90 : 545,040.24 = 97,169.17 : x
  2. Step 2: Convert to fraction form
    363,387.90/545,040.24 = 97,169.17/x
  3. Step 3: Cross multiply
    363,387.90x = 545,040.24 × 97,169.17
  4. Step 4: Simplify right side
    363,387.90x = 52,961,107,737.40
  5. Step 5: Solve for x
    x = 52,961,107,737.40/363,387.90
  6. Step 6: Final answer
    x = 145,742.63

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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.