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Finding the Fourth Proportional to 73,293.32, 109,866.22 and 28,951.52

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Solution

The fourth proportional to 73,293.32, 109,866.22 and 28,951.52 is: 43,398.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,293.32 : 109,866.22 = 28,951.52 : x
  2. Step 2: Convert to fraction form
    73,293.32/109,866.22 = 28,951.52/x
  3. Step 3: Cross multiply
    73,293.32x = 109,866.22 × 28,951.52
  4. Step 4: Simplify right side
    73,293.32x = 3,180,794,065.65
  5. Step 5: Solve for x
    x = 3,180,794,065.65/73,293.32
  6. Step 6: Final answer
    x = 43,398.14

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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.