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Finding the Fourth Proportional to 350,449.48, 525,717.98 and 137,189.86

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Solution

The fourth proportional to 350,449.48, 525,717.98 and 137,189.86 is: 205,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,449.48 : 525,717.98 = 137,189.86 : x
  2. Step 2: Convert to fraction form
    350,449.48/525,717.98 = 137,189.86/x
  3. Step 3: Cross multiply
    350,449.48x = 525,717.98 × 137,189.86
  4. Step 4: Simplify right side
    350,449.48x = 72,123,175,389.73
  5. Step 5: Solve for x
    x = 72,123,175,389.73/350,449.48
  6. Step 6: Final answer
    x = 205,801.92

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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.