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Finding the Fourth Proportional to 74,893.94, 103,177.83 and 52,191.66

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Solution

The fourth proportional to 74,893.94, 103,177.83 and 52,191.66 is: 71,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,893.94 : 103,177.83 = 52,191.66 : x
  2. Step 2: Convert to fraction form
    74,893.94/103,177.83 = 52,191.66/x
  3. Step 3: Cross multiply
    74,893.94x = 103,177.83 × 52,191.66
  4. Step 4: Simplify right side
    74,893.94x = 5,385,022,222.90
  5. Step 5: Solve for x
    x = 5,385,022,222.90/74,893.94
  6. Step 6: Final answer
    x = 71,901.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.