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Finding the Fourth Proportional to 59,919.57, 89,809.38 and 45,080.82

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Solution

The fourth proportional to 59,919.57, 89,809.38 and 45,080.82 is: 67,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,919.57 : 89,809.38 = 45,080.82 : x
  2. Step 2: Convert to fraction form
    59,919.57/89,809.38 = 45,080.82/x
  3. Step 3: Cross multiply
    59,919.57x = 89,809.38 × 45,080.82
  4. Step 4: Simplify right side
    59,919.57x = 4,048,680,494.09
  5. Step 5: Solve for x
    x = 4,048,680,494.09/59,919.57
  6. Step 6: Final answer
    x = 67,568.58

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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.