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Finding the Fourth Proportional to 101,769.49, 152,598.21 and 80,843.68

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Solution

The fourth proportional to 101,769.49, 152,598.21 and 80,843.68 is: 121,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,769.49 : 152,598.21 = 80,843.68 : x
  2. Step 2: Convert to fraction form
    101,769.49/152,598.21 = 80,843.68/x
  3. Step 3: Cross multiply
    101,769.49x = 152,598.21 × 80,843.68
  4. Step 4: Simplify right side
    101,769.49x = 12,336,600,857.81
  5. Step 5: Solve for x
    x = 12,336,600,857.81/101,769.49
  6. Step 6: Final answer
    x = 121,221.01

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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.