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Finding the Fourth Proportional to 175.84, 242.56 and 124

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Solution

The fourth proportional to 175.84, 242.56 and 124 is: 171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.84 : 242.56 = 124 : x
  2. Step 2: Convert to fraction form
    175.84/242.56 = 124/x
  3. Step 3: Cross multiply
    175.84x = 242.56 × 124
  4. Step 4: Simplify right side
    175.84x = 30,077.44
  5. Step 5: Solve for x
    x = 30,077.44/175.84
  6. Step 6: Final answer
    x = 171.05

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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.