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Finding the Fourth Proportional to 251,788.15, 377,685.47 and 74,297.71

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Solution

The fourth proportional to 251,788.15, 377,685.47 and 74,297.71 is: 111,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,788.15 : 377,685.47 = 74,297.71 : x
  2. Step 2: Convert to fraction form
    251,788.15/377,685.47 = 74,297.71/x
  3. Step 3: Cross multiply
    251,788.15x = 377,685.47 × 74,297.71
  4. Step 4: Simplify right side
    251,788.15x = 28,061,165,149.79
  5. Step 5: Solve for x
    x = 28,061,165,149.79/251,788.15
  6. Step 6: Final answer
    x = 111,447.52

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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.