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Finding the Fourth Proportional to 116.57, 174.79 and 48.06

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Solution

The fourth proportional to 116.57, 174.79 and 48.06 is: 72.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.57 : 174.79 = 48.06 : x
  2. Step 2: Convert to fraction form
    116.57/174.79 = 48.06/x
  3. Step 3: Cross multiply
    116.57x = 174.79 × 48.06
  4. Step 4: Simplify right side
    116.57x = 8,400.29
  5. Step 5: Solve for x
    x = 8,400.29/116.57
  6. Step 6: Final answer
    x = 72.06

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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.