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Finding the Fourth Proportional to 56,759.76, 85,008.40 and 54,791.46

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Solution

The fourth proportional to 56,759.76, 85,008.40 and 54,791.46 is: 82,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.76 : 85,008.40 = 54,791.46 : x
  2. Step 2: Convert to fraction form
    56,759.76/85,008.40 = 54,791.46/x
  3. Step 3: Cross multiply
    56,759.76x = 85,008.40 × 54,791.46
  4. Step 4: Simplify right side
    56,759.76x = 4,657,734,348.26
  5. Step 5: Solve for x
    x = 4,657,734,348.26/56,759.76
  6. Step 6: Final answer
    x = 82,060.50

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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.