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Finding the Fourth Proportional to 261,720.48, 361,168.56 and 152,843.52

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Solution

The fourth proportional to 261,720.48, 361,168.56 and 152,843.52 is: 210,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,720.48 : 361,168.56 = 152,843.52 : x
  2. Step 2: Convert to fraction form
    261,720.48/361,168.56 = 152,843.52/x
  3. Step 3: Cross multiply
    261,720.48x = 361,168.56 × 152,843.52
  4. Step 4: Simplify right side
    261,720.48x = 55,202,274,023.73
  5. Step 5: Solve for x
    x = 55,202,274,023.73/261,720.48
  6. Step 6: Final answer
    x = 210,920.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.