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Finding the Fourth Proportional to 90,371.84, 124,724.22 and 52,648.52

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Solution

The fourth proportional to 90,371.84, 124,724.22 and 52,648.52 is: 72,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,371.84 : 124,724.22 = 52,648.52 : x
  2. Step 2: Convert to fraction form
    90,371.84/124,724.22 = 52,648.52/x
  3. Step 3: Cross multiply
    90,371.84x = 124,724.22 × 52,648.52
  4. Step 4: Simplify right side
    90,371.84x = 6,566,545,591.15
  5. Step 5: Solve for x
    x = 6,566,545,591.15/90,371.84
  6. Step 6: Final answer
    x = 72,661.41

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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.