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Finding the Fourth Proportional to 311,101.28, 466,725.72 and 100,738.88

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Solution

The fourth proportional to 311,101.28, 466,725.72 and 100,738.88 is: 151,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,101.28 : 466,725.72 = 100,738.88 : x
  2. Step 2: Convert to fraction form
    311,101.28/466,725.72 = 100,738.88/x
  3. Step 3: Cross multiply
    311,101.28x = 466,725.72 × 100,738.88
  4. Step 4: Simplify right side
    311,101.28x = 47,017,426,299.99
  5. Step 5: Solve for x
    x = 47,017,426,299.99/311,101.28
  6. Step 6: Final answer
    x = 151,132.22

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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.