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Finding the Fourth Proportional to 161,863.96, 223,388.59 and 93,901.72

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Solution

The fourth proportional to 161,863.96, 223,388.59 and 93,901.72 is: 129,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,863.96 : 223,388.59 = 93,901.72 : x
  2. Step 2: Convert to fraction form
    161,863.96/223,388.59 = 93,901.72/x
  3. Step 3: Cross multiply
    161,863.96x = 223,388.59 × 93,901.72
  4. Step 4: Simplify right side
    161,863.96x = 20,976,571,477.68
  5. Step 5: Solve for x
    x = 20,976,571,477.68/161,863.96
  6. Step 6: Final answer
    x = 129,593.84

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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.