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Finding the Fourth Proportional to 378,047.60, 567,052.56 and 141,372.88

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Solution

The fourth proportional to 378,047.60, 567,052.56 and 141,372.88 is: 212,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,047.60 : 567,052.56 = 141,372.88 : x
  2. Step 2: Convert to fraction form
    378,047.60/567,052.56 = 141,372.88/x
  3. Step 3: Cross multiply
    378,047.60x = 567,052.56 × 141,372.88
  4. Step 4: Simplify right side
    378,047.60x = 80,165,853,518.57
  5. Step 5: Solve for x
    x = 80,165,853,518.57/378,047.60
  6. Step 6: Final answer
    x = 212,052.27

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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.