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Finding the Fourth Proportional to 239,711.80, 359,567.70 and 165,062.20

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Solution

The fourth proportional to 239,711.80, 359,567.70 and 165,062.20 is: 247,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,711.80 : 359,567.70 = 165,062.20 : x
  2. Step 2: Convert to fraction form
    239,711.80/359,567.70 = 165,062.20/x
  3. Step 3: Cross multiply
    239,711.80x = 359,567.70 × 165,062.20
  4. Step 4: Simplify right side
    239,711.80x = 59,351,035,610.94
  5. Step 5: Solve for x
    x = 59,351,035,610.94/239,711.80
  6. Step 6: Final answer
    x = 247,593.30

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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.