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Finding the Fourth Proportional to 66,141.92, 99,144.91 and 26,144.65

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Solution

The fourth proportional to 66,141.92, 99,144.91 and 26,144.65 is: 39,190.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.92 : 99,144.91 = 26,144.65 : x
  2. Step 2: Convert to fraction form
    66,141.92/99,144.91 = 26,144.65/x
  3. Step 3: Cross multiply
    66,141.92x = 99,144.91 × 26,144.65
  4. Step 4: Simplify right side
    66,141.92x = 2,592,108,849.00
  5. Step 5: Solve for x
    x = 2,592,108,849.00/66,141.92
  6. Step 6: Final answer
    x = 39,190.11

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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.