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Finding the Fourth Proportional to 292.96, 439.50 and 97.98

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Solution

The fourth proportional to 292.96, 439.50 and 97.98 is: 146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.96 : 439.50 = 97.98 : x
  2. Step 2: Convert to fraction form
    292.96/439.50 = 97.98/x
  3. Step 3: Cross multiply
    292.96x = 439.50 × 97.98
  4. Step 4: Simplify right side
    292.96x = 43,062.21
  5. Step 5: Solve for x
    x = 43,062.21/292.96
  6. Step 6: Final answer
    x = 146.99

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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.