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Finding the Fourth Proportional to 80,504.61, 120,799.44 and 58,499.88

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Solution

The fourth proportional to 80,504.61, 120,799.44 and 58,499.88 is: 87,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,504.61 : 120,799.44 = 58,499.88 : x
  2. Step 2: Convert to fraction form
    80,504.61/120,799.44 = 58,499.88/x
  3. Step 3: Cross multiply
    80,504.61x = 120,799.44 × 58,499.88
  4. Step 4: Simplify right side
    80,504.61x = 7,066,752,744.07
  5. Step 5: Solve for x
    x = 7,066,752,744.07/80,504.61
  6. Step 6: Final answer
    x = 87,780.72

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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.