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Finding the Fourth Proportional to 160.12, 240.18 and 116.68

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Solution

The fourth proportional to 160.12, 240.18 and 116.68 is: 175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.12 : 240.18 = 116.68 : x
  2. Step 2: Convert to fraction form
    160.12/240.18 = 116.68/x
  3. Step 3: Cross multiply
    160.12x = 240.18 × 116.68
  4. Step 4: Simplify right side
    160.12x = 28,024.20
  5. Step 5: Solve for x
    x = 28,024.20/160.12
  6. Step 6: Final answer
    x = 175.02

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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.