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Finding the Fourth Proportional to 1,168.16, 1,751.14 and 756.06

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Solution

The fourth proportional to 1,168.16, 1,751.14 and 756.06 is: 1,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.16 : 1,751.14 = 756.06 : x
  2. Step 2: Convert to fraction form
    1,168.16/1,751.14 = 756.06/x
  3. Step 3: Cross multiply
    1,168.16x = 1,751.14 × 756.06
  4. Step 4: Simplify right side
    1,168.16x = 1,323,966.91
  5. Step 5: Solve for x
    x = 1,323,966.91/1,168.16
  6. Step 6: Final answer
    x = 1,133.38

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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.