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Finding the Fourth Proportional to 73,049.66, 109,580.74 and 25,660.61

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Solution

The fourth proportional to 73,049.66, 109,580.74 and 25,660.61 is: 38,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.66 : 109,580.74 = 25,660.61 : x
  2. Step 2: Convert to fraction form
    73,049.66/109,580.74 = 25,660.61/x
  3. Step 3: Cross multiply
    73,049.66x = 109,580.74 × 25,660.61
  4. Step 4: Simplify right side
    73,049.66x = 2,811,908,431.52
  5. Step 5: Solve for x
    x = 2,811,908,431.52/73,049.66
  6. Step 6: Final answer
    x = 38,493.11

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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.