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Finding the Fourth Proportional to 83,261.56, 124,933.34 and 38,881.86

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Solution

The fourth proportional to 83,261.56, 124,933.34 and 38,881.86 is: 58,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,261.56 : 124,933.34 = 38,881.86 : x
  2. Step 2: Convert to fraction form
    83,261.56/124,933.34 = 38,881.86/x
  3. Step 3: Cross multiply
    83,261.56x = 124,933.34 × 38,881.86
  4. Step 4: Simplify right side
    83,261.56x = 4,857,640,635.21
  5. Step 5: Solve for x
    x = 4,857,640,635.21/83,261.56
  6. Step 6: Final answer
    x = 58,341.94

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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.