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Finding the Fourth Proportional to 86,842.88, 119,843.17 and 47,098.88

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Solution

The fourth proportional to 86,842.88, 119,843.17 and 47,098.88 is: 64,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,842.88 : 119,843.17 = 47,098.88 : x
  2. Step 2: Convert to fraction form
    86,842.88/119,843.17 = 47,098.88/x
  3. Step 3: Cross multiply
    86,842.88x = 119,843.17 × 47,098.88
  4. Step 4: Simplify right side
    86,842.88x = 5,644,479,082.65
  5. Step 5: Solve for x
    x = 5,644,479,082.65/86,842.88
  6. Step 6: Final answer
    x = 64,996.45

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1.5x scale

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.