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Finding the Fourth Proportional to 295,719.80, 408,092.90 and 168,395.38

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Solution

The fourth proportional to 295,719.80, 408,092.90 and 168,395.38 is: 232,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,719.80 : 408,092.90 = 168,395.38 : x
  2. Step 2: Convert to fraction form
    295,719.80/408,092.90 = 168,395.38/x
  3. Step 3: Cross multiply
    295,719.80x = 408,092.90 × 168,395.38
  4. Step 4: Simplify right side
    295,719.80x = 68,720,957,108.59
  5. Step 5: Solve for x
    x = 68,720,957,108.59/295,719.80
  6. Step 6: Final answer
    x = 232,385.38

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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.