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Finding the Fourth Proportional to 168,866.90, 253,590.13 and 149,934.31

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Solution

The fourth proportional to 168,866.90, 253,590.13 and 149,934.31 is: 225,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,866.90 : 253,590.13 = 149,934.31 : x
  2. Step 2: Convert to fraction form
    168,866.90/253,590.13 = 149,934.31/x
  3. Step 3: Cross multiply
    168,866.90x = 253,590.13 × 149,934.31
  4. Step 4: Simplify right side
    168,866.90x = 38,021,861,300.87
  5. Step 5: Solve for x
    x = 38,021,861,300.87/168,866.90
  6. Step 6: Final answer
    x = 225,158.76

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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.