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Finding the Fourth Proportional to 295,915.38, 408,042.18 and 188,347.92

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Solution

The fourth proportional to 295,915.38, 408,042.18 and 188,347.92 is: 259,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,915.38 : 408,042.18 = 188,347.92 : x
  2. Step 2: Convert to fraction form
    295,915.38/408,042.18 = 188,347.92/x
  3. Step 3: Cross multiply
    295,915.38x = 408,042.18 × 188,347.92
  4. Step 4: Simplify right side
    295,915.38x = 76,853,895,875.27
  5. Step 5: Solve for x
    x = 76,853,895,875.27/295,915.38
  6. Step 6: Final answer
    x = 259,715.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.