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Finding the Fourth Proportional to 69,703.20, 104,414.40 and 48,571.20

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Solution

The fourth proportional to 69,703.20, 104,414.40 and 48,571.20 is: 72,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,703.20 : 104,414.40 = 48,571.20 : x
  2. Step 2: Convert to fraction form
    69,703.20/104,414.40 = 48,571.20/x
  3. Step 3: Cross multiply
    69,703.20x = 104,414.40 × 48,571.20
  4. Step 4: Simplify right side
    69,703.20x = 5,071,532,705.28
  5. Step 5: Solve for x
    x = 5,071,532,705.28/69,703.20
  6. Step 6: Final answer
    x = 72,758.97

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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.