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Finding the Fourth Proportional to 79,987.38, 119,906.28 and 35,590.02

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Solution

The fourth proportional to 79,987.38, 119,906.28 and 35,590.02 is: 53,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,987.38 : 119,906.28 = 35,590.02 : x
  2. Step 2: Convert to fraction form
    79,987.38/119,906.28 = 35,590.02/x
  3. Step 3: Cross multiply
    79,987.38x = 119,906.28 × 35,590.02
  4. Step 4: Simplify right side
    79,987.38x = 4,267,466,903.33
  5. Step 5: Solve for x
    x = 4,267,466,903.33/79,987.38
  6. Step 6: Final answer
    x = 53,351.75

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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.