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Finding the Fourth Proportional to 252,310.04, 378,593.04 and 139,969.52

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Solution

The fourth proportional to 252,310.04, 378,593.04 and 139,969.52 is: 210,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,310.04 : 378,593.04 = 139,969.52 : x
  2. Step 2: Convert to fraction form
    252,310.04/378,593.04 = 139,969.52/x
  3. Step 3: Cross multiply
    252,310.04x = 378,593.04 × 139,969.52
  4. Step 4: Simplify right side
    252,310.04x = 52,991,486,084.14
  5. Step 5: Solve for x
    x = 52,991,486,084.14/252,310.04
  6. Step 6: Final answer
    x = 210,025.28

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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.