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Finding the Fourth Proportional to 78,444.28, 108,259.50 and 44,912.44

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Solution

The fourth proportional to 78,444.28, 108,259.50 and 44,912.44 is: 61,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.28 : 108,259.50 = 44,912.44 : x
  2. Step 2: Convert to fraction form
    78,444.28/108,259.50 = 44,912.44/x
  3. Step 3: Cross multiply
    78,444.28x = 108,259.50 × 44,912.44
  4. Step 4: Simplify right side
    78,444.28x = 4,862,198,298.18
  5. Step 5: Solve for x
    x = 4,862,198,298.18/78,444.28
  6. Step 6: Final answer
    x = 61,982.83

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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.