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Finding the Fourth Proportional to 69,698.92, 104,565.98 and 30,246.44

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Solution

The fourth proportional to 69,698.92, 104,565.98 and 30,246.44 is: 45,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.92 : 104,565.98 = 30,246.44 : x
  2. Step 2: Convert to fraction form
    69,698.92/104,565.98 = 30,246.44/x
  3. Step 3: Cross multiply
    69,698.92x = 104,565.98 × 30,246.44
  4. Step 4: Simplify right side
    69,698.92x = 3,162,748,640.11
  5. Step 5: Solve for x
    x = 3,162,748,640.11/69,698.92
  6. Step 6: Final answer
    x = 45,377.30

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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.