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Finding the Fourth Proportional to 73,273.80, 109,910.70 and 66,494.10

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Solution

The fourth proportional to 73,273.80, 109,910.70 and 66,494.10 is: 99,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,273.80 : 109,910.70 = 66,494.10 : x
  2. Step 2: Convert to fraction form
    73,273.80/109,910.70 = 66,494.10/x
  3. Step 3: Cross multiply
    73,273.80x = 109,910.70 × 66,494.10
  4. Step 4: Simplify right side
    73,273.80x = 7,308,413,076.87
  5. Step 5: Solve for x
    x = 7,308,413,076.87/73,273.80
  6. Step 6: Final answer
    x = 99,741.15

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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.