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Finding the Fourth Proportional to 73,043.72, 109,565.58 and 29,298.44

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Solution

The fourth proportional to 73,043.72, 109,565.58 and 29,298.44 is: 43,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,043.72 : 109,565.58 = 29,298.44 : x
  2. Step 2: Convert to fraction form
    73,043.72/109,565.58 = 29,298.44/x
  3. Step 3: Cross multiply
    73,043.72x = 109,565.58 × 29,298.44
  4. Step 4: Simplify right side
    73,043.72x = 3,210,100,571.70
  5. Step 5: Solve for x
    x = 3,210,100,571.70/73,043.72
  6. Step 6: Final answer
    x = 43,947.66

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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.