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Finding the Fourth Proportional to 331,251.60, 496,904.40 and 141,713.40

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Solution

The fourth proportional to 331,251.60, 496,904.40 and 141,713.40 is: 212,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,251.60 : 496,904.40 = 141,713.40 : x
  2. Step 2: Convert to fraction form
    331,251.60/496,904.40 = 141,713.40/x
  3. Step 3: Cross multiply
    331,251.60x = 496,904.40 × 141,713.40
  4. Step 4: Simplify right side
    331,251.60x = 70,418,011,998.96
  5. Step 5: Solve for x
    x = 70,418,011,998.96/331,251.60
  6. Step 6: Final answer
    x = 212,581.65

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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.