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Finding the Fourth Proportional to 144.04, 216.09 and 62.94

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Solution

The fourth proportional to 144.04, 216.09 and 62.94 is: 94.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.04 : 216.09 = 62.94 : x
  2. Step 2: Convert to fraction form
    144.04/216.09 = 62.94/x
  3. Step 3: Cross multiply
    144.04x = 216.09 × 62.94
  4. Step 4: Simplify right side
    144.04x = 13,600.70
  5. Step 5: Solve for x
    x = 13,600.70/144.04
  6. Step 6: Final answer
    x = 94.42

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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.