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Finding the Fourth Proportional to 89,086.55, 122,939.80 and 48,800.60

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Solution

The fourth proportional to 89,086.55, 122,939.80 and 48,800.60 is: 67,345.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,086.55 : 122,939.80 = 48,800.60 : x
  2. Step 2: Convert to fraction form
    89,086.55/122,939.80 = 48,800.60/x
  3. Step 3: Cross multiply
    89,086.55x = 122,939.80 × 48,800.60
  4. Step 4: Simplify right side
    89,086.55x = 5,999,535,382.44
  5. Step 5: Solve for x
    x = 5,999,535,382.44/89,086.55
  6. Step 6: Final answer
    x = 67,345.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.