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Finding the Fourth Proportional to 75,008.92, 103,418.22 and 48,103.96

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Solution

The fourth proportional to 75,008.92, 103,418.22 and 48,103.96 is: 66,323.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.92 : 103,418.22 = 48,103.96 : x
  2. Step 2: Convert to fraction form
    75,008.92/103,418.22 = 48,103.96/x
  3. Step 3: Cross multiply
    75,008.92x = 103,418.22 × 48,103.96
  4. Step 4: Simplify right side
    75,008.92x = 4,974,825,918.15
  5. Step 5: Solve for x
    x = 4,974,825,918.15/75,008.92
  6. Step 6: Final answer
    x = 66,323.12

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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.