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Finding the Fourth Proportional to 115,791.94, 173,770.86 and 49,278.80

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Solution

The fourth proportional to 115,791.94, 173,770.86 and 49,278.80 is: 73,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,791.94 : 173,770.86 = 49,278.80 : x
  2. Step 2: Convert to fraction form
    115,791.94/173,770.86 = 49,278.80/x
  3. Step 3: Cross multiply
    115,791.94x = 173,770.86 × 49,278.80
  4. Step 4: Simplify right side
    115,791.94x = 8,563,219,455.77
  5. Step 5: Solve for x
    x = 8,563,219,455.77/115,791.94
  6. Step 6: Final answer
    x = 73,953.50

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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.