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Finding the Fourth Proportional to 59,921.58, 89,812.38 and 45,082.82

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Solution

The fourth proportional to 59,921.58, 89,812.38 and 45,082.82 is: 67,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,921.58 : 89,812.38 = 45,082.82 : x
  2. Step 2: Convert to fraction form
    59,921.58/89,812.38 = 45,082.82/x
  3. Step 3: Cross multiply
    59,921.58x = 89,812.38 × 45,082.82
  4. Step 4: Simplify right side
    59,921.58x = 4,048,995,361.31
  5. Step 5: Solve for x
    x = 4,048,995,361.31/59,921.58
  6. Step 6: Final answer
    x = 67,571.57

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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.