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Finding the Fourth Proportional to 69,313.85, 104,016.90 and 37,731.87

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Solution

The fourth proportional to 69,313.85, 104,016.90 and 37,731.87 is: 56,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,313.85 : 104,016.90 = 37,731.87 : x
  2. Step 2: Convert to fraction form
    69,313.85/104,016.90 = 37,731.87/x
  3. Step 3: Cross multiply
    69,313.85x = 104,016.90 × 37,731.87
  4. Step 4: Simplify right side
    69,313.85x = 3,924,752,148.60
  5. Step 5: Solve for x
    x = 3,924,752,148.60/69,313.85
  6. Step 6: Final answer
    x = 56,622.92

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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.