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Finding the Fourth Proportional to 178,155.20, 267,232.80 and 84,843.20

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Solution

The fourth proportional to 178,155.20, 267,232.80 and 84,843.20 is: 127,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,155.20 : 267,232.80 = 84,843.20 : x
  2. Step 2: Convert to fraction form
    178,155.20/267,232.80 = 84,843.20/x
  3. Step 3: Cross multiply
    178,155.20x = 267,232.80 × 84,843.20
  4. Step 4: Simplify right side
    178,155.20x = 22,672,885,896.96
  5. Step 5: Solve for x
    x = 22,672,885,896.96/178,155.20
  6. Step 6: Final answer
    x = 127,264.80

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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.