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Finding the Fourth Proportional to 292.67, 439.22 and 117

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Solution

The fourth proportional to 292.67, 439.22 and 117 is: 175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.67 : 439.22 = 117 : x
  2. Step 2: Convert to fraction form
    292.67/439.22 = 117/x
  3. Step 3: Cross multiply
    292.67x = 439.22 × 117
  4. Step 4: Simplify right side
    292.67x = 51,388.16
  5. Step 5: Solve for x
    x = 51,388.16/292.67
  6. Step 6: Final answer
    x = 175.59

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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.