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Finding the Fourth Proportional to 99,099.92, 148,722.78 and 65,808.92

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Solution

The fourth proportional to 99,099.92, 148,722.78 and 65,808.92 is: 98,761.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,099.92 : 148,722.78 = 65,808.92 : x
  2. Step 2: Convert to fraction form
    99,099.92/148,722.78 = 65,808.92/x
  3. Step 3: Cross multiply
    99,099.92x = 148,722.78 × 65,808.92
  4. Step 4: Simplify right side
    99,099.92x = 9,787,285,531.20
  5. Step 5: Solve for x
    x = 9,787,285,531.20/99,099.92
  6. Step 6: Final answer
    x = 98,761.79

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1.5x scale

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.