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Finding the Fourth Proportional to 311,797.71, 467,346.65 and 154,136.88

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Solution

The fourth proportional to 311,797.71, 467,346.65 and 154,136.88 is: 231,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,797.71 : 467,346.65 = 154,136.88 : x
  2. Step 2: Convert to fraction form
    311,797.71/467,346.65 = 154,136.88/x
  3. Step 3: Cross multiply
    311,797.71x = 467,346.65 × 154,136.88
  4. Step 4: Simplify right side
    311,797.71x = 72,035,353,738.77
  5. Step 5: Solve for x
    x = 72,035,353,738.77/311,797.71
  6. Step 6: Final answer
    x = 231,032.34

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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.