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Finding the Fourth Proportional to 117.01, 175.46 and 48.48

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Solution

The fourth proportional to 117.01, 175.46 and 48.48 is: 72.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.01 : 175.46 = 48.48 : x
  2. Step 2: Convert to fraction form
    117.01/175.46 = 48.48/x
  3. Step 3: Cross multiply
    117.01x = 175.46 × 48.48
  4. Step 4: Simplify right side
    117.01x = 8,506.30
  5. Step 5: Solve for x
    x = 8,506.30/117.01
  6. Step 6: Final answer
    x = 72.70

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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.