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Finding the Fourth Proportional to 75,099.28, 103,626.12 and 48,244

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Solution

The fourth proportional to 75,099.28, 103,626.12 and 48,244 is: 66,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,099.28 : 103,626.12 = 48,244 : x
  2. Step 2: Convert to fraction form
    75,099.28/103,626.12 = 48,244/x
  3. Step 3: Cross multiply
    75,099.28x = 103,626.12 × 48,244
  4. Step 4: Simplify right side
    75,099.28x = 4,999,338,533.28
  5. Step 5: Solve for x
    x = 4,999,338,533.28/75,099.28
  6. Step 6: Final answer
    x = 66,569.73

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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.