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Finding the Fourth Proportional to 307,532.80, 461,299.20 and 167,219.20

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Solution

The fourth proportional to 307,532.80, 461,299.20 and 167,219.20 is: 250,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,532.80 : 461,299.20 = 167,219.20 : x
  2. Step 2: Convert to fraction form
    307,532.80/461,299.20 = 167,219.20/x
  3. Step 3: Cross multiply
    307,532.80x = 461,299.20 × 167,219.20
  4. Step 4: Simplify right side
    307,532.80x = 77,138,083,184.64
  5. Step 5: Solve for x
    x = 77,138,083,184.64/307,532.80
  6. Step 6: Final answer
    x = 250,828.80

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Similar ratio
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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.