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Finding the Fourth Proportional to 135,472.40, 203,208.60 and 132,880.40

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Solution

The fourth proportional to 135,472.40, 203,208.60 and 132,880.40 is: 199,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,472.40 : 203,208.60 = 132,880.40 : x
  2. Step 2: Convert to fraction form
    135,472.40/203,208.60 = 132,880.40/x
  3. Step 3: Cross multiply
    135,472.40x = 203,208.60 × 132,880.40
  4. Step 4: Simplify right side
    135,472.40x = 27,002,440,051.44
  5. Step 5: Solve for x
    x = 27,002,440,051.44/135,472.40
  6. Step 6: Final answer
    x = 199,320.60

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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.