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Finding the Fourth Proportional to 79,099.44, 109,185 and 48,907.92

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Solution

The fourth proportional to 79,099.44, 109,185 and 48,907.92 is: 67,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,099.44 : 109,185 = 48,907.92 : x
  2. Step 2: Convert to fraction form
    79,099.44/109,185 = 48,907.92/x
  3. Step 3: Cross multiply
    79,099.44x = 109,185 × 48,907.92
  4. Step 4: Simplify right side
    79,099.44x = 5,340,011,245.20
  5. Step 5: Solve for x
    x = 5,340,011,245.20/79,099.44
  6. Step 6: Final answer
    x = 67,510.10

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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.