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Finding the Fourth Proportional to 226,729.40, 340,439.70 and 133,417.40

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Solution

The fourth proportional to 226,729.40, 340,439.70 and 133,417.40 is: 200,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,729.40 : 340,439.70 = 133,417.40 : x
  2. Step 2: Convert to fraction form
    226,729.40/340,439.70 = 133,417.40/x
  3. Step 3: Cross multiply
    226,729.40x = 340,439.70 × 133,417.40
  4. Step 4: Simplify right side
    226,729.40x = 45,420,579,630.78
  5. Step 5: Solve for x
    x = 45,420,579,630.78/226,729.40
  6. Step 6: Final answer
    x = 200,329.47

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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.