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Finding the Fourth Proportional to 261.24, 360.70 and 174.10

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Solution

The fourth proportional to 261.24, 360.70 and 174.10 is: 240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.24 : 360.70 = 174.10 : x
  2. Step 2: Convert to fraction form
    261.24/360.70 = 174.10/x
  3. Step 3: Cross multiply
    261.24x = 360.70 × 174.10
  4. Step 4: Simplify right side
    261.24x = 62,797.87
  5. Step 5: Solve for x
    x = 62,797.87/261.24
  6. Step 6: Final answer
    x = 240.38

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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.