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Finding the Fourth Proportional to 214.88, 296.76 and 176

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Solution

The fourth proportional to 214.88, 296.76 and 176 is: 243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.88 : 296.76 = 176 : x
  2. Step 2: Convert to fraction form
    214.88/296.76 = 176/x
  3. Step 3: Cross multiply
    214.88x = 296.76 × 176
  4. Step 4: Simplify right side
    214.88x = 52,229.76
  5. Step 5: Solve for x
    x = 52,229.76/214.88
  6. Step 6: Final answer
    x = 243.06

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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.