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Finding the Fourth Proportional to 87,948, 121,368.24 and 48,204

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Solution

The fourth proportional to 87,948, 121,368.24 and 48,204 is: 66,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948 : 121,368.24 = 48,204 : x
  2. Step 2: Convert to fraction form
    87,948/121,368.24 = 48,204/x
  3. Step 3: Cross multiply
    87,948x = 121,368.24 × 48,204
  4. Step 4: Simplify right side
    87,948x = 5,850,434,640.96
  5. Step 5: Solve for x
    x = 5,850,434,640.96/87,948
  6. Step 6: Final answer
    x = 66,521.52

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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.