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Finding the Fourth Proportional to 206,629.68, 309,652.92 and 88,259.52

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Solution

The fourth proportional to 206,629.68, 309,652.92 and 88,259.52 is: 132,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,629.68 : 309,652.92 = 88,259.52 : x
  2. Step 2: Convert to fraction form
    206,629.68/309,652.92 = 88,259.52/x
  3. Step 3: Cross multiply
    206,629.68x = 309,652.92 × 88,259.52
  4. Step 4: Simplify right side
    206,629.68x = 27,329,818,085.80
  5. Step 5: Solve for x
    x = 27,329,818,085.80/206,629.68
  6. Step 6: Final answer
    x = 132,264.73

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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.