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Finding the Fourth Proportional to 68,891.78, 95,046.20 and 45,032.22

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Solution

The fourth proportional to 68,891.78, 95,046.20 and 45,032.22 is: 62,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,891.78 : 95,046.20 = 45,032.22 : x
  2. Step 2: Convert to fraction form
    68,891.78/95,046.20 = 45,032.22/x
  3. Step 3: Cross multiply
    68,891.78x = 95,046.20 × 45,032.22
  4. Step 4: Simplify right side
    68,891.78x = 4,280,141,388.56
  5. Step 5: Solve for x
    x = 4,280,141,388.56/68,891.78
  6. Step 6: Final answer
    x = 62,128.48

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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.