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Finding the Fourth Proportional to 392,551.18, 588,830.38 and 108,246.65

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Solution

The fourth proportional to 392,551.18, 588,830.38 and 108,246.65 is: 162,370.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,551.18 : 588,830.38 = 108,246.65 : x
  2. Step 2: Convert to fraction form
    392,551.18/588,830.38 = 108,246.65/x
  3. Step 3: Cross multiply
    392,551.18x = 588,830.38 × 108,246.65
  4. Step 4: Simplify right side
    392,551.18x = 63,738,912,838.46
  5. Step 5: Solve for x
    x = 63,738,912,838.46/392,551.18
  6. Step 6: Final answer
    x = 162,370.96

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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.