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Finding the Fourth Proportional to 84,658.95, 127,014.89 and 50,961.87

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Solution

The fourth proportional to 84,658.95, 127,014.89 and 50,961.87 is: 76,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,658.95 : 127,014.89 = 50,961.87 : x
  2. Step 2: Convert to fraction form
    84,658.95/127,014.89 = 50,961.87/x
  3. Step 3: Cross multiply
    84,658.95x = 127,014.89 × 50,961.87
  4. Step 4: Simplify right side
    84,658.95x = 6,472,916,057.43
  5. Step 5: Solve for x
    x = 6,472,916,057.43/84,658.95
  6. Step 6: Final answer
    x = 76,458.73

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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.