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Finding the Fourth Proportional to 70,776.72, 106,189.20 and 44,450.64

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Solution

The fourth proportional to 70,776.72, 106,189.20 and 44,450.64 is: 66,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776.72 : 106,189.20 = 44,450.64 : x
  2. Step 2: Convert to fraction form
    70,776.72/106,189.20 = 44,450.64/x
  3. Step 3: Cross multiply
    70,776.72x = 106,189.20 × 44,450.64
  4. Step 4: Simplify right side
    70,776.72x = 4,720,177,901.09
  5. Step 5: Solve for x
    x = 4,720,177,901.09/70,776.72
  6. Step 6: Final answer
    x = 66,691.11

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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.