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Finding the Fourth Proportional to 233.84, 350.90 and 96.86

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Solution

The fourth proportional to 233.84, 350.90 and 96.86 is: 145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.84 : 350.90 = 96.86 : x
  2. Step 2: Convert to fraction form
    233.84/350.90 = 96.86/x
  3. Step 3: Cross multiply
    233.84x = 350.90 × 96.86
  4. Step 4: Simplify right side
    233.84x = 33,988.17
  5. Step 5: Solve for x
    x = 33,988.17/233.84
  6. Step 6: Final answer
    x = 145.35

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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.