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Finding the Fourth Proportional to 117.32, 162.00 and 96.56

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Solution

The fourth proportional to 117.32, 162.00 and 96.56 is: 133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.32 : 162.00 = 96.56 : x
  2. Step 2: Convert to fraction form
    117.32/162.00 = 96.56/x
  3. Step 3: Cross multiply
    117.32x = 162.00 × 96.56
  4. Step 4: Simplify right side
    117.32x = 15,642.24
  5. Step 5: Solve for x
    x = 15,642.24/117.32
  6. Step 6: Final answer
    x = 133.34

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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.