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Finding the Fourth Proportional to 311,028.60, 466,542.90 and 124,174.20

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Solution

The fourth proportional to 311,028.60, 466,542.90 and 124,174.20 is: 186,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,028.60 : 466,542.90 = 124,174.20 : x
  2. Step 2: Convert to fraction form
    311,028.60/466,542.90 = 124,174.20/x
  3. Step 3: Cross multiply
    311,028.60x = 466,542.90 × 124,174.20
  4. Step 4: Simplify right side
    311,028.60x = 57,932,591,373.18
  5. Step 5: Solve for x
    x = 57,932,591,373.18/311,028.60
  6. Step 6: Final answer
    x = 186,261.30

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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.