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Finding the Fourth Proportional to 90,469.68, 124,845.75 and 52,227.94

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Solution

The fourth proportional to 90,469.68, 124,845.75 and 52,227.94 is: 72,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,469.68 : 124,845.75 = 52,227.94 : x
  2. Step 2: Convert to fraction form
    90,469.68/124,845.75 = 52,227.94/x
  3. Step 3: Cross multiply
    90,469.68x = 124,845.75 × 52,227.94
  4. Step 4: Simplify right side
    90,469.68x = 6,520,436,340.26
  5. Step 5: Solve for x
    x = 6,520,436,340.26/90,469.68
  6. Step 6: Final answer
    x = 72,073.17

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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.