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Finding the Fourth Proportional to 116.48, 174.72 and 48.03

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Solution

The fourth proportional to 116.48, 174.72 and 48.03 is: 72.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.48 : 174.72 = 48.03 : x
  2. Step 2: Convert to fraction form
    116.48/174.72 = 48.03/x
  3. Step 3: Cross multiply
    116.48x = 174.72 × 48.03
  4. Step 4: Simplify right side
    116.48x = 8,392.31
  5. Step 5: Solve for x
    x = 8,392.31/116.48
  6. Step 6: Final answer
    x = 72.05

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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.