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Finding the Fourth Proportional to 179,516.70, 247,747.29 and 98,958.55

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Solution

The fourth proportional to 179,516.70, 247,747.29 and 98,958.55 is: 136,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,516.70 : 247,747.29 = 98,958.55 : x
  2. Step 2: Convert to fraction form
    179,516.70/247,747.29 = 98,958.55/x
  3. Step 3: Cross multiply
    179,516.70x = 247,747.29 × 98,958.55
  4. Step 4: Simplify right side
    179,516.70x = 24,516,712,584.83
  5. Step 5: Solve for x
    x = 24,516,712,584.83/179,516.70
  6. Step 6: Final answer
    x = 136,570.65

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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.