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Finding the Fourth Proportional to 100,964.80, 151,435.14 and 41,793.40

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Solution

The fourth proportional to 100,964.80, 151,435.14 and 41,793.40 is: 62,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,964.80 : 151,435.14 = 41,793.40 : x
  2. Step 2: Convert to fraction form
    100,964.80/151,435.14 = 41,793.40/x
  3. Step 3: Cross multiply
    100,964.80x = 151,435.14 × 41,793.40
  4. Step 4: Simplify right side
    100,964.80x = 6,328,989,380.08
  5. Step 5: Solve for x
    x = 6,328,989,380.08/100,964.80
  6. Step 6: Final answer
    x = 62,685.11

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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.