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Finding the Fourth Proportional to 158,723.00, 219,044.03 and 87,105.56

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Solution

The fourth proportional to 158,723.00, 219,044.03 and 87,105.56 is: 120,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.00 : 219,044.03 = 87,105.56 : x
  2. Step 2: Convert to fraction form
    158,723.00/219,044.03 = 87,105.56/x
  3. Step 3: Cross multiply
    158,723.00x = 219,044.03 × 87,105.56
  4. Step 4: Simplify right side
    158,723.00x = 19,079,951,367.06
  5. Step 5: Solve for x
    x = 19,079,951,367.06/158,723.00
  6. Step 6: Final answer
    x = 120,209.12

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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.