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Finding the Fourth Proportional to 145,241.01, 217,872.38 and 40,059

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Solution

The fourth proportional to 145,241.01, 217,872.38 and 40,059 is: 60,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,241.01 : 217,872.38 = 40,059 : x
  2. Step 2: Convert to fraction form
    145,241.01/217,872.38 = 40,059/x
  3. Step 3: Cross multiply
    145,241.01x = 217,872.38 × 40,059
  4. Step 4: Simplify right side
    145,241.01x = 8,727,749,770.57
  5. Step 5: Solve for x
    x = 8,727,749,770.57/145,241.01
  6. Step 6: Final answer
    x = 60,091.50

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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.