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Finding the Fourth Proportional to 158,872.92, 219,098.32 and 107,961.96

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Solution

The fourth proportional to 158,872.92, 219,098.32 and 107,961.96 is: 148,888.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,872.92 : 219,098.32 = 107,961.96 : x
  2. Step 2: Convert to fraction form
    158,872.92/219,098.32 = 107,961.96/x
  3. Step 3: Cross multiply
    158,872.92x = 219,098.32 × 107,961.96
  4. Step 4: Simplify right side
    158,872.92x = 23,654,284,059.91
  5. Step 5: Solve for x
    x = 23,654,284,059.91/158,872.92
  6. Step 6: Final answer
    x = 148,888.08

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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.