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Finding the Fourth Proportional to 226,711.40, 340,412.70 and 133,399.40

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Solution

The fourth proportional to 226,711.40, 340,412.70 and 133,399.40 is: 200,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,711.40 : 340,412.70 = 133,399.40 : x
  2. Step 2: Convert to fraction form
    226,711.40/340,412.70 = 133,399.40/x
  3. Step 3: Cross multiply
    226,711.40x = 340,412.70 × 133,399.40
  4. Step 4: Simplify right side
    226,711.40x = 45,410,849,932.38
  5. Step 5: Solve for x
    x = 45,410,849,932.38/226,711.40
  6. Step 6: Final answer
    x = 200,302.45

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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.