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Finding the Fourth Proportional to 73,305.24, 100,905.60 and 63,265.56

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Solution

The fourth proportional to 73,305.24, 100,905.60 and 63,265.56 is: 87,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,305.24 : 100,905.60 = 63,265.56 : x
  2. Step 2: Convert to fraction form
    73,305.24/100,905.60 = 63,265.56/x
  3. Step 3: Cross multiply
    73,305.24x = 100,905.60 × 63,265.56
  4. Step 4: Simplify right side
    73,305.24x = 6,383,849,291.14
  5. Step 5: Solve for x
    x = 6,383,849,291.14/73,305.24
  6. Step 6: Final answer
    x = 87,085.85

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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.