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Finding the Fourth Proportional to 226,304.40, 339,675.30 and 137,730.90

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Solution

The fourth proportional to 226,304.40, 339,675.30 and 137,730.90 is: 206,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,304.40 : 339,675.30 = 137,730.90 : x
  2. Step 2: Convert to fraction form
    226,304.40/339,675.30 = 137,730.90/x
  3. Step 3: Cross multiply
    226,304.40x = 339,675.30 × 137,730.90
  4. Step 4: Simplify right side
    226,304.40x = 46,783,784,776.77
  5. Step 5: Solve for x
    x = 46,783,784,776.77/226,304.40
  6. Step 6: Final answer
    x = 206,729.45

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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.