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Finding the Fourth Proportional to 56,987.81, 85,405.29 and 44,352.82

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Solution

The fourth proportional to 56,987.81, 85,405.29 and 44,352.82 is: 66,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.81 : 85,405.29 = 44,352.82 : x
  2. Step 2: Convert to fraction form
    56,987.81/85,405.29 = 44,352.82/x
  3. Step 3: Cross multiply
    56,987.81x = 85,405.29 × 44,352.82
  4. Step 4: Simplify right side
    56,987.81x = 3,787,965,240.90
  5. Step 5: Solve for x
    x = 3,787,965,240.90/56,987.81
  6. Step 6: Final answer
    x = 66,469.75

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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.