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Finding the Fourth Proportional to 200,803.20, 301,188.48 and 67,680.60

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Solution

The fourth proportional to 200,803.20, 301,188.48 and 67,680.60 is: 101,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,803.20 : 301,188.48 = 67,680.60 : x
  2. Step 2: Convert to fraction form
    200,803.20/301,188.48 = 67,680.60/x
  3. Step 3: Cross multiply
    200,803.20x = 301,188.48 × 67,680.60
  4. Step 4: Simplify right side
    200,803.20x = 20,384,617,039.49
  5. Step 5: Solve for x
    x = 20,384,617,039.49/200,803.20
  6. Step 6: Final answer
    x = 101,515.40

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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.