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Finding the Fourth Proportional to 179,687.10, 269,530.65 and 61,340.70

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Solution

The fourth proportional to 179,687.10, 269,530.65 and 61,340.70 is: 92,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,687.10 : 269,530.65 = 61,340.70 : x
  2. Step 2: Convert to fraction form
    179,687.10/269,530.65 = 61,340.70/x
  3. Step 3: Cross multiply
    179,687.10x = 269,530.65 × 61,340.70
  4. Step 4: Simplify right side
    179,687.10x = 16,533,198,742.46
  5. Step 5: Solve for x
    x = 16,533,198,742.46/179,687.10
  6. Step 6: Final answer
    x = 92,011.05

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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.