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Finding the Fourth Proportional to 154,472.20, 215,736.20 and 154,472.20

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Solution

The fourth proportional to 154,472.20, 215,736.20 and 154,472.20 is: 215,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,472.20 : 215,736.20 = 154,472.20 : x
  2. Step 2: Convert to fraction form
    154,472.20/215,736.20 = 154,472.20/x
  3. Step 3: Cross multiply
    154,472.20x = 215,736.20 × 154,472.20
  4. Step 4: Simplify right side
    154,472.20x = 33,325,245,433.64
  5. Step 5: Solve for x
    x = 33,325,245,433.64/154,472.20
  6. Step 6: Final answer
    x = 215,736.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.