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Finding the Fourth Proportional to 80,790.64, 111,489.88 and 44,980.56

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Solution

The fourth proportional to 80,790.64, 111,489.88 and 44,980.56 is: 62,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790.64 : 111,489.88 = 44,980.56 : x
  2. Step 2: Convert to fraction form
    80,790.64/111,489.88 = 44,980.56/x
  3. Step 3: Cross multiply
    80,790.64x = 111,489.88 × 44,980.56
  4. Step 4: Simplify right side
    80,790.64x = 5,014,877,236.73
  5. Step 5: Solve for x
    x = 5,014,877,236.73/80,790.64
  6. Step 6: Final answer
    x = 62,072.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.