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Finding the Fourth Proportional to 99.63, 149.25 and 96.27

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Solution

The fourth proportional to 99.63, 149.25 and 96.27 is: 144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.63 : 149.25 = 96.27 : x
  2. Step 2: Convert to fraction form
    99.63/149.25 = 96.27/x
  3. Step 3: Cross multiply
    99.63x = 149.25 × 96.27
  4. Step 4: Simplify right side
    99.63x = 14,368.30
  5. Step 5: Solve for x
    x = 14,368.30/99.63
  6. Step 6: Final answer
    x = 144.22

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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.