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Finding the Fourth Proportional to 239,802.26, 359,703.15 and 71,321.90

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Solution

The fourth proportional to 239,802.26, 359,703.15 and 71,321.90 is: 106,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,802.26 : 359,703.15 = 71,321.90 : x
  2. Step 2: Convert to fraction form
    239,802.26/359,703.15 = 71,321.90/x
  3. Step 3: Cross multiply
    239,802.26x = 359,703.15 × 71,321.90
  4. Step 4: Simplify right side
    239,802.26x = 25,654,712,093.99
  5. Step 5: Solve for x
    x = 25,654,712,093.99/239,802.26
  6. Step 6: Final answer
    x = 106,982.78

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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.