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Finding the Fourth Proportional to 89,859.38, 134,789.06 and 27,529.88

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Solution

The fourth proportional to 89,859.38, 134,789.06 and 27,529.88 is: 41,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,859.38 : 134,789.06 = 27,529.88 : x
  2. Step 2: Convert to fraction form
    89,859.38/134,789.06 = 27,529.88/x
  3. Step 3: Cross multiply
    89,859.38x = 134,789.06 × 27,529.88
  4. Step 4: Simplify right side
    89,859.38x = 3,710,726,041.99
  5. Step 5: Solve for x
    x = 3,710,726,041.99/89,859.38
  6. Step 6: Final answer
    x = 41,294.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.