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Finding the Fourth Proportional to 86,993.92, 130,463.52 and 37,072.96

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Solution

The fourth proportional to 86,993.92, 130,463.52 and 37,072.96 is: 55,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.92 : 130,463.52 = 37,072.96 : x
  2. Step 2: Convert to fraction form
    86,993.92/130,463.52 = 37,072.96/x
  3. Step 3: Cross multiply
    86,993.92x = 130,463.52 × 37,072.96
  4. Step 4: Simplify right side
    86,993.92x = 4,836,668,858.42
  5. Step 5: Solve for x
    x = 4,836,668,858.42/86,993.92
  6. Step 6: Final answer
    x = 55,597.78

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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.