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Finding the Fourth Proportional to 116,882.52, 161,297.90 and 66,581.52

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Solution

The fourth proportional to 116,882.52, 161,297.90 and 66,581.52 is: 91,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,882.52 : 161,297.90 = 66,581.52 : x
  2. Step 2: Convert to fraction form
    116,882.52/161,297.90 = 66,581.52/x
  3. Step 3: Cross multiply
    116,882.52x = 161,297.90 × 66,581.52
  4. Step 4: Simplify right side
    116,882.52x = 10,739,458,666.71
  5. Step 5: Solve for x
    x = 10,739,458,666.71/116,882.52
  6. Step 6: Final answer
    x = 91,882.51

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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.