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Finding the Fourth Proportional to 200,313.60, 300,616.20 and 133,731.60

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Solution

The fourth proportional to 200,313.60, 300,616.20 and 133,731.60 is: 200,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,313.60 : 300,616.20 = 133,731.60 : x
  2. Step 2: Convert to fraction form
    200,313.60/300,616.20 = 133,731.60/x
  3. Step 3: Cross multiply
    200,313.60x = 300,616.20 × 133,731.60
  4. Step 4: Simplify right side
    200,313.60x = 40,201,885,411.92
  5. Step 5: Solve for x
    x = 40,201,885,411.92/200,313.60
  6. Step 6: Final answer
    x = 200,694.74

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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.