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Finding the Fourth Proportional to 73,772.70, 101,815.47 and 45,086.46

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Solution

The fourth proportional to 73,772.70, 101,815.47 and 45,086.46 is: 62,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,772.70 : 101,815.47 = 45,086.46 : x
  2. Step 2: Convert to fraction form
    73,772.70/101,815.47 = 45,086.46/x
  3. Step 3: Cross multiply
    73,772.70x = 101,815.47 × 45,086.46
  4. Step 4: Simplify right side
    73,772.70x = 4,590,499,115.54
  5. Step 5: Solve for x
    x = 4,590,499,115.54/73,772.70
  6. Step 6: Final answer
    x = 62,224.90

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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.