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Finding the Fourth Proportional to 239,831.80, 359,798.76 and 71,352.64

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Solution

The fourth proportional to 239,831.80, 359,798.76 and 71,352.64 is: 107,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,831.80 : 359,798.76 = 71,352.64 : x
  2. Step 2: Convert to fraction form
    239,831.80/359,798.76 = 71,352.64/x
  3. Step 3: Cross multiply
    239,831.80x = 359,798.76 × 71,352.64
  4. Step 4: Simplify right side
    239,831.80x = 25,672,591,394.73
  5. Step 5: Solve for x
    x = 25,672,591,394.73/239,831.80
  6. Step 6: Final answer
    x = 107,044.15

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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.