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Finding the Fourth Proportional to 233.68, 350.70 and 147.14

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Solution

The fourth proportional to 233.68, 350.70 and 147.14 is: 220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.68 : 350.70 = 147.14 : x
  2. Step 2: Convert to fraction form
    233.68/350.70 = 147.14/x
  3. Step 3: Cross multiply
    233.68x = 350.70 × 147.14
  4. Step 4: Simplify right side
    233.68x = 51,602.00
  5. Step 5: Solve for x
    x = 51,602.00/233.68
  6. Step 6: Final answer
    x = 220.82

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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.