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Finding the Fourth Proportional to 153.24, 211.46 and 95

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Solution

The fourth proportional to 153.24, 211.46 and 95 is: 131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.24 : 211.46 = 95 : x
  2. Step 2: Convert to fraction form
    153.24/211.46 = 95/x
  3. Step 3: Cross multiply
    153.24x = 211.46 × 95
  4. Step 4: Simplify right side
    153.24x = 20,088.70
  5. Step 5: Solve for x
    x = 20,088.70/153.24
  6. Step 6: Final answer
    x = 131.09

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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.