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Finding the Fourth Proportional to 73,052.59, 100,811.59 and 40,787.70

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Solution

The fourth proportional to 73,052.59, 100,811.59 and 40,787.70 is: 56,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,052.59 : 100,811.59 = 40,787.70 : x
  2. Step 2: Convert to fraction form
    73,052.59/100,811.59 = 40,787.70/x
  3. Step 3: Cross multiply
    73,052.59x = 100,811.59 × 40,787.70
  4. Step 4: Simplify right side
    73,052.59x = 4,111,872,685.50
  5. Step 5: Solve for x
    x = 4,111,872,685.50/73,052.59
  6. Step 6: Final answer
    x = 56,286.48

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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.