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Finding the Fourth Proportional to 187,229.60, 280,844.40 and 54,114.20

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Solution

The fourth proportional to 187,229.60, 280,844.40 and 54,114.20 is: 81,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,229.60 : 280,844.40 = 54,114.20 : x
  2. Step 2: Convert to fraction form
    187,229.60/280,844.40 = 54,114.20/x
  3. Step 3: Cross multiply
    187,229.60x = 280,844.40 × 54,114.20
  4. Step 4: Simplify right side
    187,229.60x = 15,197,670,030.48
  5. Step 5: Solve for x
    x = 15,197,670,030.48/187,229.60
  6. Step 6: Final answer
    x = 81,171.30

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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.