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Finding the Fourth Proportional to 73,076.31, 100,840.55 and 41,240.88

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Solution

The fourth proportional to 73,076.31, 100,840.55 and 41,240.88 is: 56,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,076.31 : 100,840.55 = 41,240.88 : x
  2. Step 2: Convert to fraction form
    73,076.31/100,840.55 = 41,240.88/x
  3. Step 3: Cross multiply
    73,076.31x = 100,840.55 × 41,240.88
  4. Step 4: Simplify right side
    73,076.31x = 4,158,752,815.48
  5. Step 5: Solve for x
    x = 4,158,752,815.48/73,076.31
  6. Step 6: Final answer
    x = 56,909.73

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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.