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Finding the Fourth Proportional to 80,392.79, 120,661.46 and 59,072.62

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Solution

The fourth proportional to 80,392.79, 120,661.46 and 59,072.62 is: 88,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392.79 : 120,661.46 = 59,072.62 : x
  2. Step 2: Convert to fraction form
    80,392.79/120,661.46 = 59,072.62/x
  3. Step 3: Cross multiply
    80,392.79x = 120,661.46 × 59,072.62
  4. Step 4: Simplify right side
    80,392.79x = 7,127,788,575.23
  5. Step 5: Solve for x
    x = 7,127,788,575.23/80,392.79
  6. Step 6: Final answer
    x = 88,662.04

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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.