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Finding the Fourth Proportional to 392,148.65, 588,161.45 and 107,860.52

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Solution

The fourth proportional to 392,148.65, 588,161.45 and 107,860.52 is: 161,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,148.65 : 588,161.45 = 107,860.52 : x
  2. Step 2: Convert to fraction form
    392,148.65/588,161.45 = 107,860.52/x
  3. Step 3: Cross multiply
    392,148.65x = 588,161.45 × 107,860.52
  4. Step 4: Simplify right side
    392,148.65x = 63,439,401,581.01
  5. Step 5: Solve for x
    x = 63,439,401,581.01/392,148.65
  6. Step 6: Final answer
    x = 161,773.86

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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.