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Finding the Fourth Proportional to 67,152.20, 100,805.90 and 36,048.20

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Solution

The fourth proportional to 67,152.20, 100,805.90 and 36,048.20 is: 54,113.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,152.20 : 100,805.90 = 36,048.20 : x
  2. Step 2: Convert to fraction form
    67,152.20/100,805.90 = 36,048.20/x
  3. Step 3: Cross multiply
    67,152.20x = 100,805.90 × 36,048.20
  4. Step 4: Simplify right side
    67,152.20x = 3,633,871,244.38
  5. Step 5: Solve for x
    x = 3,633,871,244.38/67,152.20
  6. Step 6: Final answer
    x = 54,113.96

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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.