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Finding the Fourth Proportional to 85,761.88, 118,360.16 and 49,464.76

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Solution

The fourth proportional to 85,761.88, 118,360.16 and 49,464.76 is: 68,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,761.88 : 118,360.16 = 49,464.76 : x
  2. Step 2: Convert to fraction form
    85,761.88/118,360.16 = 49,464.76/x
  3. Step 3: Cross multiply
    85,761.88x = 118,360.16 × 49,464.76
  4. Step 4: Simplify right side
    85,761.88x = 5,854,656,907.96
  5. Step 5: Solve for x
    x = 5,854,656,907.96/85,761.88
  6. Step 6: Final answer
    x = 68,266.42

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1.5x scale

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.