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Finding the Fourth Proportional to 69,281.80, 103,950.14 and 36,022.84

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Solution

The fourth proportional to 69,281.80, 103,950.14 and 36,022.84 is: 54,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,281.80 : 103,950.14 = 36,022.84 : x
  2. Step 2: Convert to fraction form
    69,281.80/103,950.14 = 36,022.84/x
  3. Step 3: Cross multiply
    69,281.80x = 103,950.14 × 36,022.84
  4. Step 4: Simplify right side
    69,281.80x = 3,744,579,261.20
  5. Step 5: Solve for x
    x = 3,744,579,261.20/69,281.80
  6. Step 6: Final answer
    x = 54,048.53

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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.