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Finding the Fourth Proportional to 73,212.36, 109,844.88 and 28,814.52

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Solution

The fourth proportional to 73,212.36, 109,844.88 and 28,814.52 is: 43,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,212.36 : 109,844.88 = 28,814.52 : x
  2. Step 2: Convert to fraction form
    73,212.36/109,844.88 = 28,814.52/x
  3. Step 3: Cross multiply
    73,212.36x = 109,844.88 × 28,814.52
  4. Step 4: Simplify right side
    73,212.36x = 3,165,127,491.66
  5. Step 5: Solve for x
    x = 3,165,127,491.66/73,212.36
  6. Step 6: Final answer
    x = 43,232.15

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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.