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Finding the Fourth Proportional to 73,196.94, 109,810.92 and 28,219.44

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Solution

The fourth proportional to 73,196.94, 109,810.92 and 28,219.44 is: 42,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,196.94 : 109,810.92 = 28,219.44 : x
  2. Step 2: Convert to fraction form
    73,196.94/109,810.92 = 28,219.44/x
  3. Step 3: Cross multiply
    73,196.94x = 109,810.92 × 28,219.44
  4. Step 4: Simplify right side
    73,196.94x = 3,098,802,668.28
  5. Step 5: Solve for x
    x = 3,098,802,668.28/73,196.94
  6. Step 6: Final answer
    x = 42,335.14

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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.