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Finding the Fourth Proportional to 95.16, 142.76 and 75.04

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Solution

The fourth proportional to 95.16, 142.76 and 75.04 is: 112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.16 : 142.76 = 75.04 : x
  2. Step 2: Convert to fraction form
    95.16/142.76 = 75.04/x
  3. Step 3: Cross multiply
    95.16x = 142.76 × 75.04
  4. Step 4: Simplify right side
    95.16x = 10,712.71
  5. Step 5: Solve for x
    x = 10,712.71/95.16
  6. Step 6: Final answer
    x = 112.58

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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.