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Finding the Fourth Proportional to 218,773.80, 327,642.30 and 148,271.40

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Solution

The fourth proportional to 218,773.80, 327,642.30 and 148,271.40 is: 222,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,773.80 : 327,642.30 = 148,271.40 : x
  2. Step 2: Convert to fraction form
    218,773.80/327,642.30 = 148,271.40/x
  3. Step 3: Cross multiply
    218,773.80x = 327,642.30 × 148,271.40
  4. Step 4: Simplify right side
    218,773.80x = 48,579,982,520.22
  5. Step 5: Solve for x
    x = 48,579,982,520.22/218,773.80
  6. Step 6: Final answer
    x = 222,055.76

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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.