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Finding the Fourth Proportional to 73,296.62, 109,933.35 and 28,311.32

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Solution

The fourth proportional to 73,296.62, 109,933.35 and 28,311.32 is: 42,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,296.62 : 109,933.35 = 28,311.32 : x
  2. Step 2: Convert to fraction form
    73,296.62/109,933.35 = 28,311.32/x
  3. Step 3: Cross multiply
    73,296.62x = 109,933.35 × 28,311.32
  4. Step 4: Simplify right side
    73,296.62x = 3,112,358,578.44
  5. Step 5: Solve for x
    x = 3,112,358,578.44/73,296.62
  6. Step 6: Final answer
    x = 42,462.51

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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.