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Finding the Fourth Proportional to 69,297.20, 103,780.76 and 44,259.68

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Solution

The fourth proportional to 69,297.20, 103,780.76 and 44,259.68 is: 66,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,297.20 : 103,780.76 = 44,259.68 : x
  2. Step 2: Convert to fraction form
    69,297.20/103,780.76 = 44,259.68/x
  3. Step 3: Cross multiply
    69,297.20x = 103,780.76 × 44,259.68
  4. Step 4: Simplify right side
    69,297.20x = 4,593,303,227.76
  5. Step 5: Solve for x
    x = 4,593,303,227.76/69,297.20
  6. Step 6: Final answer
    x = 66,284.11

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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.