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Finding the Fourth Proportional to 73,299.62, 109,937.84 and 28,314.32

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Solution

The fourth proportional to 73,299.62, 109,937.84 and 28,314.32 is: 42,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,299.62 : 109,937.84 = 28,314.32 : x
  2. Step 2: Convert to fraction form
    73,299.62/109,937.84 = 28,314.32/x
  3. Step 3: Cross multiply
    73,299.62x = 109,937.84 × 28,314.32
  4. Step 4: Simplify right side
    73,299.62x = 3,112,815,181.87
  5. Step 5: Solve for x
    x = 3,112,815,181.87/73,299.62
  6. Step 6: Final answer
    x = 42,467.00

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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.