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Finding the Fourth Proportional to 59,986.70, 89,850.45 and 49,618.70

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Solution

The fourth proportional to 59,986.70, 89,850.45 and 49,618.70 is: 74,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,986.70 : 89,850.45 = 49,618.70 : x
  2. Step 2: Convert to fraction form
    59,986.70/89,850.45 = 49,618.70/x
  3. Step 3: Cross multiply
    59,986.70x = 89,850.45 × 49,618.70
  4. Step 4: Simplify right side
    59,986.70x = 4,458,262,523.42
  5. Step 5: Solve for x
    x = 4,458,262,523.42/59,986.70
  6. Step 6: Final answer
    x = 74,320.85

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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.