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Finding the Fourth Proportional to 94,512.68, 130,441.92 and 71,814.68

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Solution

The fourth proportional to 94,512.68, 130,441.92 and 71,814.68 is: 99,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,512.68 : 130,441.92 = 71,814.68 : x
  2. Step 2: Convert to fraction form
    94,512.68/130,441.92 = 71,814.68/x
  3. Step 3: Cross multiply
    94,512.68x = 130,441.92 × 71,814.68
  4. Step 4: Simplify right side
    94,512.68x = 9,367,644,743.39
  5. Step 5: Solve for x
    x = 9,367,644,743.39/94,512.68
  6. Step 6: Final answer
    x = 99,115.22

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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.