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Finding the Fourth Proportional to 335,836.80, 503,870.40 and 148,982.40

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Solution

The fourth proportional to 335,836.80, 503,870.40 and 148,982.40 is: 223,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,836.80 : 503,870.40 = 148,982.40 : x
  2. Step 2: Convert to fraction form
    335,836.80/503,870.40 = 148,982.40/x
  3. Step 3: Cross multiply
    335,836.80x = 503,870.40 × 148,982.40
  4. Step 4: Simplify right side
    335,836.80x = 75,067,821,480.96
  5. Step 5: Solve for x
    x = 75,067,821,480.96/335,836.80
  6. Step 6: Final answer
    x = 223,524.70

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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.