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Finding the Fourth Proportional to 292.49, 438.67 and 97.46

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Solution

The fourth proportional to 292.49, 438.67 and 97.46 is: 146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.49 : 438.67 = 97.46 : x
  2. Step 2: Convert to fraction form
    292.49/438.67 = 97.46/x
  3. Step 3: Cross multiply
    292.49x = 438.67 × 97.46
  4. Step 4: Simplify right side
    292.49x = 42,750.10
  5. Step 5: Solve for x
    x = 42,750.10/292.49
  6. Step 6: Final answer
    x = 146.16

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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.