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Finding the Fourth Proportional to 147, 202.88 and 95.36

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Solution

The fourth proportional to 147, 202.88 and 95.36 is: 131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147 : 202.88 = 95.36 : x
  2. Step 2: Convert to fraction form
    147/202.88 = 95.36/x
  3. Step 3: Cross multiply
    147x = 202.88 × 95.36
  4. Step 4: Simplify right side
    147x = 19,346.64
  5. Step 5: Solve for x
    x = 19,346.64/147
  6. Step 6: Final answer
    x = 131.61

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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.