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Finding the Fourth Proportional to 99.06, 148.89 and 96.93

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Solution

The fourth proportional to 99.06, 148.89 and 96.93 is: 145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.06 : 148.89 = 96.93 : x
  2. Step 2: Convert to fraction form
    99.06/148.89 = 96.93/x
  3. Step 3: Cross multiply
    99.06x = 148.89 × 96.93
  4. Step 4: Simplify right side
    99.06x = 14,432.09
  5. Step 5: Solve for x
    x = 14,432.09/99.06
  6. Step 6: Final answer
    x = 145.69

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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.