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Finding the Fourth Proportional to 338,598.59, 507,539.79 and 125,229.38

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Solution

The fourth proportional to 338,598.59, 507,539.79 and 125,229.38 is: 187,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,598.59 : 507,539.79 = 125,229.38 : x
  2. Step 2: Convert to fraction form
    338,598.59/507,539.79 = 125,229.38/x
  3. Step 3: Cross multiply
    338,598.59x = 507,539.79 × 125,229.38
  4. Step 4: Simplify right side
    338,598.59x = 63,558,890,689.33
  5. Step 5: Solve for x
    x = 63,558,890,689.33/338,598.59
  6. Step 6: Final answer
    x = 187,711.63

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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.