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Finding the Fourth Proportional to 146.67, 202.20 and 113.52

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Solution

The fourth proportional to 146.67, 202.20 and 113.52 is: 156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.67 : 202.20 = 113.52 : x
  2. Step 2: Convert to fraction form
    146.67/202.20 = 113.52/x
  3. Step 3: Cross multiply
    146.67x = 202.20 × 113.52
  4. Step 4: Simplify right side
    146.67x = 22,953.74
  5. Step 5: Solve for x
    x = 22,953.74/146.67
  6. Step 6: Final answer
    x = 156.50

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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.