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Finding the Fourth Proportional to 239,901.71, 359,458.70 and 82,044.05

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Solution

The fourth proportional to 239,901.71, 359,458.70 and 82,044.05 is: 122,931.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,901.71 : 359,458.70 = 82,044.05 : x
  2. Step 2: Convert to fraction form
    239,901.71/359,458.70 = 82,044.05/x
  3. Step 3: Cross multiply
    239,901.71x = 359,458.70 × 82,044.05
  4. Step 4: Simplify right side
    239,901.71x = 29,491,445,348.22
  5. Step 5: Solve for x
    x = 29,491,445,348.22/239,901.71
  6. Step 6: Final answer
    x = 122,931.37

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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.