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Finding the Fourth Proportional to 69,808.26, 104,575.95 and 55,797.78

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Solution

The fourth proportional to 69,808.26, 104,575.95 and 55,797.78 is: 83,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,808.26 : 104,575.95 = 55,797.78 : x
  2. Step 2: Convert to fraction form
    69,808.26/104,575.95 = 55,797.78/x
  3. Step 3: Cross multiply
    69,808.26x = 104,575.95 × 55,797.78
  4. Step 4: Simplify right side
    69,808.26x = 5,835,105,851.39
  5. Step 5: Solve for x
    x = 5,835,105,851.39/69,808.26
  6. Step 6: Final answer
    x = 83,587.61

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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.