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Finding the Fourth Proportional to 67,232.40, 100,805.40 and 27,805.20

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Solution

The fourth proportional to 67,232.40, 100,805.40 and 27,805.20 is: 41,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,232.40 : 100,805.40 = 27,805.20 : x
  2. Step 2: Convert to fraction form
    67,232.40/100,805.40 = 27,805.20/x
  3. Step 3: Cross multiply
    67,232.40x = 100,805.40 × 27,805.20
  4. Step 4: Simplify right side
    67,232.40x = 2,802,914,308.08
  5. Step 5: Solve for x
    x = 2,802,914,308.08/67,232.40
  6. Step 6: Final answer
    x = 41,689.93

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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.