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Finding the Fourth Proportional to 63,342, 95,022.72 and 45,943.20

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Solution

The fourth proportional to 63,342, 95,022.72 and 45,943.20 is: 68,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,342 : 95,022.72 = 45,943.20 : x
  2. Step 2: Convert to fraction form
    63,342/95,022.72 = 45,943.20/x
  3. Step 3: Cross multiply
    63,342x = 95,022.72 × 45,943.20
  4. Step 4: Simplify right side
    63,342x = 4,365,647,829.50
  5. Step 5: Solve for x
    x = 4,365,647,829.50/63,342
  6. Step 6: Final answer
    x = 68,921.85

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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.