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Finding the Fourth Proportional to 239,635.68, 359,504.54 and 71,156.49

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Solution

The fourth proportional to 239,635.68, 359,504.54 and 71,156.49 is: 106,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,635.68 : 359,504.54 = 71,156.49 : x
  2. Step 2: Convert to fraction form
    239,635.68/359,504.54 = 71,156.49/x
  3. Step 3: Cross multiply
    239,635.68x = 359,504.54 × 71,156.49
  4. Step 4: Simplify right side
    239,635.68x = 25,581,081,205.46
  5. Step 5: Solve for x
    x = 25,581,081,205.46/239,635.68
  6. Step 6: Final answer
    x = 106,749.88

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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.