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Finding the Fourth Proportional to 233.97, 322.90 and 146.65

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Solution

The fourth proportional to 233.97, 322.90 and 146.65 is: 202.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.97 : 322.90 = 146.65 : x
  2. Step 2: Convert to fraction form
    233.97/322.90 = 146.65/x
  3. Step 3: Cross multiply
    233.97x = 322.90 × 146.65
  4. Step 4: Simplify right side
    233.97x = 47,353.29
  5. Step 5: Solve for x
    x = 47,353.29/233.97
  6. Step 6: Final answer
    x = 202.39

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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.