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Finding the Fourth Proportional to 70,767.52, 106,152.12 and 28,083.41

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Solution

The fourth proportional to 70,767.52, 106,152.12 and 28,083.41 is: 42,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,767.52 : 106,152.12 = 28,083.41 : x
  2. Step 2: Convert to fraction form
    70,767.52/106,152.12 = 28,083.41/x
  3. Step 3: Cross multiply
    70,767.52x = 106,152.12 × 28,083.41
  4. Step 4: Simplify right side
    70,767.52x = 2,981,113,375.64
  5. Step 5: Solve for x
    x = 2,981,113,375.64/70,767.52
  6. Step 6: Final answer
    x = 42,125.44

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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.