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Finding the Fourth Proportional to 95,478, 131,759.64 and 53,040.48

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Solution

The fourth proportional to 95,478, 131,759.64 and 53,040.48 is: 73,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,478 : 131,759.64 = 53,040.48 : x
  2. Step 2: Convert to fraction form
    95,478/131,759.64 = 53,040.48/x
  3. Step 3: Cross multiply
    95,478x = 131,759.64 × 53,040.48
  4. Step 4: Simplify right side
    95,478x = 6,988,594,550.23
  5. Step 5: Solve for x
    x = 6,988,594,550.23/95,478
  6. Step 6: Final answer
    x = 73,195.86

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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.