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Finding the Fourth Proportional to 109,932.70, 154,255.70 and 109,932.70

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Solution

The fourth proportional to 109,932.70, 154,255.70 and 109,932.70 is: 154,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,932.70 : 154,255.70 = 109,932.70 : x
  2. Step 2: Convert to fraction form
    109,932.70/154,255.70 = 109,932.70/x
  3. Step 3: Cross multiply
    109,932.70x = 154,255.70 × 109,932.70
  4. Step 4: Simplify right side
    109,932.70x = 16,957,745,591.39
  5. Step 5: Solve for x
    x = 16,957,745,591.39/109,932.70
  6. Step 6: Final answer
    x = 154,255.70

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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.