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Finding the Fourth Proportional to 161,670.56, 223,105.41 and 93,726.92

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Solution

The fourth proportional to 161,670.56, 223,105.41 and 93,726.92 is: 129,343.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,670.56 : 223,105.41 = 93,726.92 : x
  2. Step 2: Convert to fraction form
    161,670.56/223,105.41 = 93,726.92/x
  3. Step 3: Cross multiply
    161,670.56x = 223,105.41 × 93,726.92
  4. Step 4: Simplify right side
    161,670.56x = 20,910,981,799.11
  5. Step 5: Solve for x
    x = 20,910,981,799.11/161,670.56
  6. Step 6: Final answer
    x = 129,343.17

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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.