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Finding the Fourth Proportional to 156,020.80, 233,944.80 and 67,259.20

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Solution

The fourth proportional to 156,020.80, 233,944.80 and 67,259.20 is: 100,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,020.80 : 233,944.80 = 67,259.20 : x
  2. Step 2: Convert to fraction form
    156,020.80/233,944.80 = 67,259.20/x
  3. Step 3: Cross multiply
    156,020.80x = 233,944.80 × 67,259.20
  4. Step 4: Simplify right side
    156,020.80x = 15,734,940,092.16
  5. Step 5: Solve for x
    x = 15,734,940,092.16/156,020.80
  6. Step 6: Final answer
    x = 100,851.55

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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.