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Finding the Fourth Proportional to 60,877.88, 84,034.96 and 54,493.21

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Solution

The fourth proportional to 60,877.88, 84,034.96 and 54,493.21 is: 75,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,877.88 : 84,034.96 = 54,493.21 : x
  2. Step 2: Convert to fraction form
    60,877.88/84,034.96 = 54,493.21/x
  3. Step 3: Cross multiply
    60,877.88x = 84,034.96 × 54,493.21
  4. Step 4: Simplify right side
    60,877.88x = 4,579,334,486.94
  5. Step 5: Solve for x
    x = 4,579,334,486.94/60,877.88
  6. Step 6: Final answer
    x = 75,221.65

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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.