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Finding the Fourth Proportional to 59,961.68, 89,872.28 and 45,122.96

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Solution

The fourth proportional to 59,961.68, 89,872.28 and 45,122.96 is: 67,631.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,961.68 : 89,872.28 = 45,122.96 : x
  2. Step 2: Convert to fraction form
    59,961.68/89,872.28 = 45,122.96/x
  3. Step 3: Cross multiply
    59,961.68x = 89,872.28 × 45,122.96
  4. Step 4: Simplify right side
    59,961.68x = 4,055,303,295.55
  5. Step 5: Solve for x
    x = 4,055,303,295.55/59,961.68
  6. Step 6: Final answer
    x = 67,631.58

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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.