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Finding the Fourth Proportional to 357,108.38, 535,694.01 and 132,471.26

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Solution

The fourth proportional to 357,108.38, 535,694.01 and 132,471.26 is: 198,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,108.38 : 535,694.01 = 132,471.26 : x
  2. Step 2: Convert to fraction form
    357,108.38/535,694.01 = 132,471.26/x
  3. Step 3: Cross multiply
    357,108.38x = 535,694.01 × 132,471.26
  4. Step 4: Simplify right side
    357,108.38x = 70,964,060,479.15
  5. Step 5: Solve for x
    x = 70,964,060,479.15/357,108.38
  6. Step 6: Final answer
    x = 198,718.55

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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.