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Finding the Fourth Proportional to 73,246.10, 109,881.30 and 28,874.30

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Solution

The fourth proportional to 73,246.10, 109,881.30 and 28,874.30 is: 43,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,246.10 : 109,881.30 = 28,874.30 : x
  2. Step 2: Convert to fraction form
    73,246.10/109,881.30 = 28,874.30/x
  3. Step 3: Cross multiply
    73,246.10x = 109,881.30 × 28,874.30
  4. Step 4: Simplify right side
    73,246.10x = 3,172,745,620.59
  5. Step 5: Solve for x
    x = 3,172,745,620.59/73,246.10
  6. Step 6: Final answer
    x = 43,316.24

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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.