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Finding the Fourth Proportional to 63,938.30, 88,217.54 and 36,342.57

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Solution

The fourth proportional to 63,938.30, 88,217.54 and 36,342.57 is: 50,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,938.30 : 88,217.54 = 36,342.57 : x
  2. Step 2: Convert to fraction form
    63,938.30/88,217.54 = 36,342.57/x
  3. Step 3: Cross multiply
    63,938.30x = 88,217.54 × 36,342.57
  4. Step 4: Simplify right side
    63,938.30x = 3,206,051,940.96
  5. Step 5: Solve for x
    x = 3,206,051,940.96/63,938.30
  6. Step 6: Final answer
    x = 50,142.91

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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.