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Finding the Fourth Proportional to 72,772.44, 109,158.60 and 22,856.52

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Solution

The fourth proportional to 72,772.44, 109,158.60 and 22,856.52 is: 34,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772.44 : 109,158.60 = 22,856.52 : x
  2. Step 2: Convert to fraction form
    72,772.44/109,158.60 = 22,856.52/x
  3. Step 3: Cross multiply
    72,772.44x = 109,158.60 × 22,856.52
  4. Step 4: Simplify right side
    72,772.44x = 2,494,985,724.07
  5. Step 5: Solve for x
    x = 2,494,985,724.07/72,772.44
  6. Step 6: Final answer
    x = 34,284.76

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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.