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Finding the Fourth Proportional to 113.69, 156.74 and 95.24

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Solution

The fourth proportional to 113.69, 156.74 and 95.24 is: 131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.69 : 156.74 = 95.24 : x
  2. Step 2: Convert to fraction form
    113.69/156.74 = 95.24/x
  3. Step 3: Cross multiply
    113.69x = 156.74 × 95.24
  4. Step 4: Simplify right side
    113.69x = 14,926.66
  5. Step 5: Solve for x
    x = 14,926.66/113.69
  6. Step 6: Final answer
    x = 131.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.