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Finding the Fourth Proportional to 116,882.65, 161,298.08 and 66,581.65

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Solution

The fourth proportional to 116,882.65, 161,298.08 and 66,581.65 is: 91,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,882.65 : 161,298.08 = 66,581.65 : x
  2. Step 2: Convert to fraction form
    116,882.65/161,298.08 = 66,581.65/x
  3. Step 3: Cross multiply
    116,882.65x = 161,298.08 × 66,581.65
  4. Step 4: Simplify right side
    116,882.65x = 10,739,491,168.83
  5. Step 5: Solve for x
    x = 10,739,491,168.83/116,882.65
  6. Step 6: Final answer
    x = 91,882.68

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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.