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Finding the Fourth Proportional to 169,921.89, 234,498.11 and 93,444.12

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Solution

The fourth proportional to 169,921.89, 234,498.11 and 93,444.12 is: 128,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,921.89 : 234,498.11 = 93,444.12 : x
  2. Step 2: Convert to fraction form
    169,921.89/234,498.11 = 93,444.12/x
  3. Step 3: Cross multiply
    169,921.89x = 234,498.11 × 93,444.12
  4. Step 4: Simplify right side
    169,921.89x = 21,912,469,063.39
  5. Step 5: Solve for x
    x = 21,912,469,063.39/169,921.89
  6. Step 6: Final answer
    x = 128,956.13

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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.