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Finding the Fourth Proportional to 251,750.86, 377,496.43 and 74,234.80

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Solution

The fourth proportional to 251,750.86, 377,496.43 and 74,234.80 is: 111,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,750.86 : 377,496.43 = 74,234.80 : x
  2. Step 2: Convert to fraction form
    251,750.86/377,496.43 = 74,234.80/x
  3. Step 3: Cross multiply
    251,750.86x = 377,496.43 × 74,234.80
  4. Step 4: Simplify right side
    251,750.86x = 28,023,371,981.76
  5. Step 5: Solve for x
    x = 28,023,371,981.76/251,750.86
  6. Step 6: Final answer
    x = 111,313.91

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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.