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Finding the Fourth Proportional to 73,051.56, 109,535.06 and 28,626.30

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Solution

The fourth proportional to 73,051.56, 109,535.06 and 28,626.30 is: 42,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,051.56 : 109,535.06 = 28,626.30 : x
  2. Step 2: Convert to fraction form
    73,051.56/109,535.06 = 28,626.30/x
  3. Step 3: Cross multiply
    73,051.56x = 109,535.06 × 28,626.30
  4. Step 4: Simplify right side
    73,051.56x = 3,135,583,488.08
  5. Step 5: Solve for x
    x = 3,135,583,488.08/73,051.56
  6. Step 6: Final answer
    x = 42,922.88

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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.