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Finding the Fourth Proportional to 1,168.56, 1,744.92 and 1,045.44

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Solution

The fourth proportional to 1,168.56, 1,744.92 and 1,045.44 is: 1,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.56 : 1,744.92 = 1,045.44 : x
  2. Step 2: Convert to fraction form
    1,168.56/1,744.92 = 1,045.44/x
  3. Step 3: Cross multiply
    1,168.56x = 1,744.92 × 1,045.44
  4. Step 4: Simplify right side
    1,168.56x = 1,824,209.16
  5. Step 5: Solve for x
    x = 1,824,209.16/1,168.56
  6. Step 6: Final answer
    x = 1,561.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.