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Finding the Fourth Proportional to 69,339.80, 104,012.58 and 57,734.84

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Solution

The fourth proportional to 69,339.80, 104,012.58 and 57,734.84 is: 86,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,339.80 : 104,012.58 = 57,734.84 : x
  2. Step 2: Convert to fraction form
    69,339.80/104,012.58 = 57,734.84/x
  3. Step 3: Cross multiply
    69,339.80x = 104,012.58 × 57,734.84
  4. Step 4: Simplify right side
    69,339.80x = 6,005,149,664.29
  5. Step 5: Solve for x
    x = 6,005,149,664.29/69,339.80
  6. Step 6: Final answer
    x = 86,604.66

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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.