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Finding the Fourth Proportional to 117, 175.08 and 65.52

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Solution

The fourth proportional to 117, 175.08 and 65.52 is: 98.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117 : 175.08 = 65.52 : x
  2. Step 2: Convert to fraction form
    117/175.08 = 65.52/x
  3. Step 3: Cross multiply
    117x = 175.08 × 65.52
  4. Step 4: Simplify right side
    117x = 11,471.24
  5. Step 5: Solve for x
    x = 11,471.24/117
  6. Step 6: Final answer
    x = 98.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.