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Finding the Fourth Proportional to 67,365.80, 100,902.90 and 36,164.60

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Solution

The fourth proportional to 67,365.80, 100,902.90 and 36,164.60 is: 54,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,365.80 : 100,902.90 = 36,164.60 : x
  2. Step 2: Convert to fraction form
    67,365.80/100,902.90 = 36,164.60/x
  3. Step 3: Cross multiply
    67,365.80x = 100,902.90 × 36,164.60
  4. Step 4: Simplify right side
    67,365.80x = 3,649,113,017.34
  5. Step 5: Solve for x
    x = 3,649,113,017.34/67,365.80
  6. Step 6: Final answer
    x = 54,168.63

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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.