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Finding the Fourth Proportional to 68,874.34, 95,053.10 and 40,191.69

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Solution

The fourth proportional to 68,874.34, 95,053.10 and 40,191.69 is: 55,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.34 : 95,053.10 = 40,191.69 : x
  2. Step 2: Convert to fraction form
    68,874.34/95,053.10 = 40,191.69/x
  3. Step 3: Cross multiply
    68,874.34x = 95,053.10 × 40,191.69
  4. Step 4: Simplify right side
    68,874.34x = 3,820,344,152.99
  5. Step 5: Solve for x
    x = 3,820,344,152.99/68,874.34
  6. Step 6: Final answer
    x = 55,468.32

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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.