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Finding the Fourth Proportional to 113, 155.88 and 95.52

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Solution

The fourth proportional to 113, 155.88 and 95.52 is: 131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113 : 155.88 = 95.52 : x
  2. Step 2: Convert to fraction form
    113/155.88 = 95.52/x
  3. Step 3: Cross multiply
    113x = 155.88 × 95.52
  4. Step 4: Simplify right side
    113x = 14,889.66
  5. Step 5: Solve for x
    x = 14,889.66/113
  6. Step 6: Final answer
    x = 131.77

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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.