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Finding the Fourth Proportional to 115,885.67, 173,940.84 and 55,956.38

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Solution

The fourth proportional to 115,885.67, 173,940.84 and 55,956.38 is: 83,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,885.67 : 173,940.84 = 55,956.38 : x
  2. Step 2: Convert to fraction form
    115,885.67/173,940.84 = 55,956.38/x
  3. Step 3: Cross multiply
    115,885.67x = 173,940.84 × 55,956.38
  4. Step 4: Simplify right side
    115,885.67x = 9,733,098,870.86
  5. Step 5: Solve for x
    x = 9,733,098,870.86/115,885.67
  6. Step 6: Final answer
    x = 83,988.81

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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.