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Finding the Fourth Proportional to 69,853.92, 96,396.72 and 40,044

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Solution

The fourth proportional to 69,853.92, 96,396.72 and 40,044 is: 55,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,853.92 : 96,396.72 = 40,044 : x
  2. Step 2: Convert to fraction form
    69,853.92/96,396.72 = 40,044/x
  3. Step 3: Cross multiply
    69,853.92x = 96,396.72 × 40,044
  4. Step 4: Simplify right side
    69,853.92x = 3,860,110,255.68
  5. Step 5: Solve for x
    x = 3,860,110,255.68/69,853.92
  6. Step 6: Final answer
    x = 55,259.75

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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.