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Finding the Fourth Proportional to 251,749.86, 377,494.93 and 74,233.80

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Solution

The fourth proportional to 251,749.86, 377,494.93 and 74,233.80 is: 111,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,749.86 : 377,494.93 = 74,233.80 : x
  2. Step 2: Convert to fraction form
    251,749.86/377,494.93 = 74,233.80/x
  3. Step 3: Cross multiply
    251,749.86x = 377,494.93 × 74,233.80
  4. Step 4: Simplify right side
    251,749.86x = 28,022,883,227.43
  5. Step 5: Solve for x
    x = 28,022,883,227.43/251,749.86
  6. Step 6: Final answer
    x = 111,312.41

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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.