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Finding the Fourth Proportional to 95.06, 142.50 and 64.68

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Solution

The fourth proportional to 95.06, 142.50 and 64.68 is: 96.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.06 : 142.50 = 64.68 : x
  2. Step 2: Convert to fraction form
    95.06/142.50 = 64.68/x
  3. Step 3: Cross multiply
    95.06x = 142.50 × 64.68
  4. Step 4: Simplify right side
    95.06x = 9,216.90
  5. Step 5: Solve for x
    x = 9,216.90/95.06
  6. Step 6: Final answer
    x = 96.96

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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.