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Finding the Fourth Proportional to 252,011.60, 378,049.80 and 125,716.40

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Solution

The fourth proportional to 252,011.60, 378,049.80 and 125,716.40 is: 188,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,011.60 : 378,049.80 = 125,716.40 : x
  2. Step 2: Convert to fraction form
    252,011.60/378,049.80 = 125,716.40/x
  3. Step 3: Cross multiply
    252,011.60x = 378,049.80 × 125,716.40
  4. Step 4: Simplify right side
    252,011.60x = 47,527,059,876.72
  5. Step 5: Solve for x
    x = 47,527,059,876.72/252,011.60
  6. Step 6: Final answer
    x = 188,590.76

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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.