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Finding the Fourth Proportional to 69,698.43, 96,188.60 and 39,484.01

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Solution

The fourth proportional to 69,698.43, 96,188.60 and 39,484.01 is: 54,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.43 : 96,188.60 = 39,484.01 : x
  2. Step 2: Convert to fraction form
    69,698.43/96,188.60 = 39,484.01/x
  3. Step 3: Cross multiply
    69,698.43x = 96,188.60 × 39,484.01
  4. Step 4: Simplify right side
    69,698.43x = 3,797,910,965.92
  5. Step 5: Solve for x
    x = 3,797,910,965.92/69,698.43
  6. Step 6: Final answer
    x = 54,490.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.