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Finding the Fourth Proportional to 102,793.40, 154,190.10 and 36,211.40

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Solution

The fourth proportional to 102,793.40, 154,190.10 and 36,211.40 is: 54,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,793.40 : 154,190.10 = 36,211.40 : x
  2. Step 2: Convert to fraction form
    102,793.40/154,190.10 = 36,211.40/x
  3. Step 3: Cross multiply
    102,793.40x = 154,190.10 × 36,211.40
  4. Step 4: Simplify right side
    102,793.40x = 5,583,439,387.14
  5. Step 5: Solve for x
    x = 5,583,439,387.14/102,793.40
  6. Step 6: Final answer
    x = 54,317.10

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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.