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Finding the Fourth Proportional to 274,061.20, 411,322.20 and 133,939.60

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Solution

The fourth proportional to 274,061.20, 411,322.20 and 133,939.60 is: 201,022.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,061.20 : 411,322.20 = 133,939.60 : x
  2. Step 2: Convert to fraction form
    274,061.20/411,322.20 = 133,939.60/x
  3. Step 3: Cross multiply
    274,061.20x = 411,322.20 × 133,939.60
  4. Step 4: Simplify right side
    274,061.20x = 55,092,330,939.12
  5. Step 5: Solve for x
    x = 55,092,330,939.12/274,061.20
  6. Step 6: Final answer
    x = 201,022.00

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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.