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Finding the Fourth Proportional to 181,994.80, 272,992.20 and 93,421.30

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Solution

The fourth proportional to 181,994.80, 272,992.20 and 93,421.30 is: 140,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,994.80 : 272,992.20 = 93,421.30 : x
  2. Step 2: Convert to fraction form
    181,994.80/272,992.20 = 93,421.30/x
  3. Step 3: Cross multiply
    181,994.80x = 272,992.20 × 93,421.30
  4. Step 4: Simplify right side
    181,994.80x = 25,503,286,213.86
  5. Step 5: Solve for x
    x = 25,503,286,213.86/181,994.80
  6. Step 6: Final answer
    x = 140,131.95

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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.