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Finding the Fourth Proportional to 357,136.08, 535,686.76 and 132,540.27

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Solution

The fourth proportional to 357,136.08, 535,686.76 and 132,540.27 is: 198,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,136.08 : 535,686.76 = 132,540.27 : x
  2. Step 2: Convert to fraction form
    357,136.08/535,686.76 = 132,540.27/x
  3. Step 3: Cross multiply
    357,136.08x = 535,686.76 × 132,540.27
  4. Step 4: Simplify right side
    357,136.08x = 71,000,067,805.83
  5. Step 5: Solve for x
    x = 71,000,067,805.83/357,136.08
  6. Step 6: Final answer
    x = 198,803.96

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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.