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Finding the Fourth Proportional to 95.76, 143.75 and 61.59

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Solution

The fourth proportional to 95.76, 143.75 and 61.59 is: 92.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.76 : 143.75 = 61.59 : x
  2. Step 2: Convert to fraction form
    95.76/143.75 = 61.59/x
  3. Step 3: Cross multiply
    95.76x = 143.75 × 61.59
  4. Step 4: Simplify right side
    95.76x = 8,853.25
  5. Step 5: Solve for x
    x = 8,853.25/95.76
  6. Step 6: Final answer
    x = 92.45

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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.