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Finding the Fourth Proportional to 252,041.53, 378,136.10 and 74,553.26

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Solution

The fourth proportional to 252,041.53, 378,136.10 and 74,553.26 is: 111,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,041.53 : 378,136.10 = 74,553.26 : x
  2. Step 2: Convert to fraction form
    252,041.53/378,136.10 = 74,553.26/x
  3. Step 3: Cross multiply
    252,041.53x = 378,136.10 × 74,553.26
  4. Step 4: Simplify right side
    252,041.53x = 28,191,278,605.92
  5. Step 5: Solve for x
    x = 28,191,278,605.92/252,041.53
  6. Step 6: Final answer
    x = 111,851.72

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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.