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Finding the Fourth Proportional to 266,044.30, 399,091.05 and 106,081.65

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Solution

The fourth proportional to 266,044.30, 399,091.05 and 106,081.65 is: 159,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,044.30 : 399,091.05 = 106,081.65 : x
  2. Step 2: Convert to fraction form
    266,044.30/399,091.05 = 106,081.65/x
  3. Step 3: Cross multiply
    266,044.30x = 399,091.05 × 106,081.65
  4. Step 4: Simplify right side
    266,044.30x = 42,336,237,084.23
  5. Step 5: Solve for x
    x = 42,336,237,084.23/266,044.30
  6. Step 6: Final answer
    x = 159,132.29

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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.