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Finding the Fourth Proportional to 295,711.88, 408,081.99 and 168,387.47

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Solution

The fourth proportional to 295,711.88, 408,081.99 and 168,387.47 is: 232,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,711.88 : 408,081.99 = 168,387.47 : x
  2. Step 2: Convert to fraction form
    295,711.88/408,081.99 = 168,387.47/x
  3. Step 3: Cross multiply
    295,711.88x = 408,081.99 × 168,387.47
  4. Step 4: Simplify right side
    295,711.88x = 68,715,894,868.87
  5. Step 5: Solve for x
    x = 68,715,894,868.87/295,711.88
  6. Step 6: Final answer
    x = 232,374.48

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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.