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Finding the Fourth Proportional to 267,860.64, 401,805.36 and 80,867.28

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Solution

The fourth proportional to 267,860.64, 401,805.36 and 80,867.28 is: 121,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,860.64 : 401,805.36 = 80,867.28 : x
  2. Step 2: Convert to fraction form
    267,860.64/401,805.36 = 80,867.28/x
  3. Step 3: Cross multiply
    267,860.64x = 401,805.36 × 80,867.28
  4. Step 4: Simplify right side
    267,860.64x = 32,492,906,552.62
  5. Step 5: Solve for x
    x = 32,492,906,552.62/267,860.64
  6. Step 6: Final answer
    x = 121,305.27

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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.