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Finding the Fourth Proportional to 292.88, 404.07 and 176.45

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Solution

The fourth proportional to 292.88, 404.07 and 176.45 is: 243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.88 : 404.07 = 176.45 : x
  2. Step 2: Convert to fraction form
    292.88/404.07 = 176.45/x
  3. Step 3: Cross multiply
    292.88x = 404.07 × 176.45
  4. Step 4: Simplify right side
    292.88x = 71,296.13
  5. Step 5: Solve for x
    x = 71,296.13/292.88
  6. Step 6: Final answer
    x = 243.44

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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.