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Finding the Fourth Proportional to 179,286.57, 247,415.46 and 99,798.57

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Solution

The fourth proportional to 179,286.57, 247,415.46 and 99,798.57 is: 137,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,286.57 : 247,415.46 = 99,798.57 : x
  2. Step 2: Convert to fraction form
    179,286.57/247,415.46 = 99,798.57/x
  3. Step 3: Cross multiply
    179,286.57x = 247,415.46 × 99,798.57
  4. Step 4: Simplify right side
    179,286.57x = 24,691,709,103.89
  5. Step 5: Solve for x
    x = 24,691,709,103.89/179,286.57
  6. Step 6: Final answer
    x = 137,722.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.