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Finding the Fourth Proportional to 99.34, 148.77 and 96.46

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Solution

The fourth proportional to 99.34, 148.77 and 96.46 is: 144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.34 : 148.77 = 96.46 : x
  2. Step 2: Convert to fraction form
    99.34/148.77 = 96.46/x
  3. Step 3: Cross multiply
    99.34x = 148.77 × 96.46
  4. Step 4: Simplify right side
    99.34x = 14,350.35
  5. Step 5: Solve for x
    x = 14,350.35/99.34
  6. Step 6: Final answer
    x = 144.46

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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.