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Finding the Fourth Proportional to 207,600.40, 311,477.40 and 67,363.60

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Solution

The fourth proportional to 207,600.40, 311,477.40 and 67,363.60 is: 101,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,600.40 : 311,477.40 = 67,363.60 : x
  2. Step 2: Convert to fraction form
    207,600.40/311,477.40 = 67,363.60/x
  3. Step 3: Cross multiply
    207,600.40x = 311,477.40 × 67,363.60
  4. Step 4: Simplify right side
    207,600.40x = 20,982,238,982.64
  5. Step 5: Solve for x
    x = 20,982,238,982.64/207,600.40
  6. Step 6: Final answer
    x = 101,070.32

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1.5x scale

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.