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Finding the Fourth Proportional to 75,227.56, 103,815.20 and 45,014.15

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Solution

The fourth proportional to 75,227.56, 103,815.20 and 45,014.15 is: 62,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,227.56 : 103,815.20 = 45,014.15 : x
  2. Step 2: Convert to fraction form
    75,227.56/103,815.20 = 45,014.15/x
  3. Step 3: Cross multiply
    75,227.56x = 103,815.20 × 45,014.15
  4. Step 4: Simplify right side
    75,227.56x = 4,673,152,760.01
  5. Step 5: Solve for x
    x = 4,673,152,760.01/75,227.56
  6. Step 6: Final answer
    x = 62,120.23

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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.