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Finding the Fourth Proportional to 1,144.08, 1,716.20 and 1,008.08

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Solution

The fourth proportional to 1,144.08, 1,716.20 and 1,008.08 is: 1,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.08 : 1,716.20 = 1,008.08 : x
  2. Step 2: Convert to fraction form
    1,144.08/1,716.20 = 1,008.08/x
  3. Step 3: Cross multiply
    1,144.08x = 1,716.20 × 1,008.08
  4. Step 4: Simplify right side
    1,144.08x = 1,730,066.90
  5. Step 5: Solve for x
    x = 1,730,066.90/1,144.08
  6. Step 6: Final answer
    x = 1,512.19

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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.