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Finding the Fourth Proportional to 239,891.88, 331,055.96 and 132,468.76

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Solution

The fourth proportional to 239,891.88, 331,055.96 and 132,468.76 is: 182,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,891.88 : 331,055.96 = 132,468.76 : x
  2. Step 2: Convert to fraction form
    239,891.88/331,055.96 = 132,468.76/x
  3. Step 3: Cross multiply
    239,891.88x = 331,055.96 × 132,468.76
  4. Step 4: Simplify right side
    239,891.88x = 43,854,572,511.81
  5. Step 5: Solve for x
    x = 43,854,572,511.81/239,891.88
  6. Step 6: Final answer
    x = 182,809.74

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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.