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Finding the Fourth Proportional to 72,919.44, 109,342.71 and 33,442.88

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Solution

The fourth proportional to 72,919.44, 109,342.71 and 33,442.88 is: 50,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,919.44 : 109,342.71 = 33,442.88 : x
  2. Step 2: Convert to fraction form
    72,919.44/109,342.71 = 33,442.88/x
  3. Step 3: Cross multiply
    72,919.44x = 109,342.71 × 33,442.88
  4. Step 4: Simplify right side
    72,919.44x = 3,656,734,582.69
  5. Step 5: Solve for x
    x = 3,656,734,582.69/72,919.44
  6. Step 6: Final answer
    x = 50,147.60

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1.5x scale

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.