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Finding the Fourth Proportional to 207,551.08, 311,370.32 and 67,298.76

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Solution

The fourth proportional to 207,551.08, 311,370.32 and 67,298.76 is: 100,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,551.08 : 311,370.32 = 67,298.76 : x
  2. Step 2: Convert to fraction form
    207,551.08/311,370.32 = 67,298.76/x
  3. Step 3: Cross multiply
    207,551.08x = 311,370.32 × 67,298.76
  4. Step 4: Simplify right side
    207,551.08x = 20,954,836,436.80
  5. Step 5: Solve for x
    x = 20,954,836,436.80/207,551.08
  6. Step 6: Final answer
    x = 100,962.31

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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.