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Finding the Fourth Proportional to 73,076.57, 100,843.14 and 40,812.85

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Solution

The fourth proportional to 73,076.57, 100,843.14 and 40,812.85 is: 56,320.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,076.57 : 100,843.14 = 40,812.85 : x
  2. Step 2: Convert to fraction form
    73,076.57/100,843.14 = 40,812.85/x
  3. Step 3: Cross multiply
    73,076.57x = 100,843.14 × 40,812.85
  4. Step 4: Simplify right side
    73,076.57x = 4,115,695,946.35
  5. Step 5: Solve for x
    x = 4,115,695,946.35/73,076.57
  6. Step 6: Final answer
    x = 56,320.32

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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.