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Finding the Fourth Proportional to 207,974.92, 311,962.14 and 67,733.32

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Solution

The fourth proportional to 207,974.92, 311,962.14 and 67,733.32 is: 101,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,974.92 : 311,962.14 = 67,733.32 : x
  2. Step 2: Convert to fraction form
    207,974.92/311,962.14 = 67,733.32/x
  3. Step 3: Cross multiply
    207,974.92x = 311,962.14 × 67,733.32
  4. Step 4: Simplify right side
    207,974.92x = 21,130,231,456.50
  5. Step 5: Solve for x
    x = 21,130,231,456.50/207,974.92
  6. Step 6: Final answer
    x = 101,599.90

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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.