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Finding the Fourth Proportional to 80,786.48, 111,487.24 and 44,978.90

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Solution

The fourth proportional to 80,786.48, 111,487.24 and 44,978.90 is: 62,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,786.48 : 111,487.24 = 44,978.90 : x
  2. Step 2: Convert to fraction form
    80,786.48/111,487.24 = 44,978.90/x
  3. Step 3: Cross multiply
    80,786.48x = 111,487.24 × 44,978.90
  4. Step 4: Simplify right side
    80,786.48x = 5,014,573,419.24
  5. Step 5: Solve for x
    x = 5,014,573,419.24/80,786.48
  6. Step 6: Final answer
    x = 62,071.94

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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.