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Finding the Fourth Proportional to 69,289.80, 103,974.80 and 37,703.14

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Solution

The fourth proportional to 69,289.80, 103,974.80 and 37,703.14 is: 56,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,289.80 : 103,974.80 = 37,703.14 : x
  2. Step 2: Convert to fraction form
    69,289.80/103,974.80 = 37,703.14/x
  3. Step 3: Cross multiply
    69,289.80x = 103,974.80 × 37,703.14
  4. Step 4: Simplify right side
    69,289.80x = 3,920,176,440.87
  5. Step 5: Solve for x
    x = 3,920,176,440.87/69,289.80
  6. Step 6: Final answer
    x = 56,576.53

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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.