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Finding the Fourth Proportional to 73,424.76, 110,137.23 and 20,117.19

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Solution

The fourth proportional to 73,424.76, 110,137.23 and 20,117.19 is: 30,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,424.76 : 110,137.23 = 20,117.19 : x
  2. Step 2: Convert to fraction form
    73,424.76/110,137.23 = 20,117.19/x
  3. Step 3: Cross multiply
    73,424.76x = 110,137.23 × 20,117.19
  4. Step 4: Simplify right side
    73,424.76x = 2,215,651,481.40
  5. Step 5: Solve for x
    x = 2,215,651,481.40/73,424.76
  6. Step 6: Final answer
    x = 30,175.81

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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.