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Finding the Fourth Proportional to 311,217.21, 466,866.72 and 111,560.31

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Solution

The fourth proportional to 311,217.21, 466,866.72 and 111,560.31 is: 167,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,217.21 : 466,866.72 = 111,560.31 : x
  2. Step 2: Convert to fraction form
    311,217.21/466,866.72 = 111,560.31/x
  3. Step 3: Cross multiply
    311,217.21x = 466,866.72 × 111,560.31
  4. Step 4: Simplify right side
    311,217.21x = 52,083,796,011.88
  5. Step 5: Solve for x
    x = 52,083,796,011.88/311,217.21
  6. Step 6: Final answer
    x = 167,355.13

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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.