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Finding the Fourth Proportional to 294.48, 441.66 and 99.48

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Solution

The fourth proportional to 294.48, 441.66 and 99.48 is: 149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.48 : 441.66 = 99.48 : x
  2. Step 2: Convert to fraction form
    294.48/441.66 = 99.48/x
  3. Step 3: Cross multiply
    294.48x = 441.66 × 99.48
  4. Step 4: Simplify right side
    294.48x = 43,936.34
  5. Step 5: Solve for x
    x = 43,936.34/294.48
  6. Step 6: Final answer
    x = 149.20

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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.