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Finding the Fourth Proportional to 239,881.86, 331,042.14 and 132,458.76

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Solution

The fourth proportional to 239,881.86, 331,042.14 and 132,458.76 is: 182,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,881.86 : 331,042.14 = 132,458.76 : x
  2. Step 2: Convert to fraction form
    239,881.86/331,042.14 = 132,458.76/x
  3. Step 3: Cross multiply
    239,881.86x = 331,042.14 × 132,458.76
  4. Step 4: Simplify right side
    239,881.86x = 43,849,431,372.15
  5. Step 5: Solve for x
    x = 43,849,431,372.15/239,881.86
  6. Step 6: Final answer
    x = 182,795.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.