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Finding the Fourth Proportional to 101,783.84, 140,458.97 and 58,761.87

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Solution

The fourth proportional to 101,783.84, 140,458.97 and 58,761.87 is: 81,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,783.84 : 140,458.97 = 58,761.87 : x
  2. Step 2: Convert to fraction form
    101,783.84/140,458.97 = 58,761.87/x
  3. Step 3: Cross multiply
    101,783.84x = 140,458.97 × 58,761.87
  4. Step 4: Simplify right side
    101,783.84x = 8,253,631,441.66
  5. Step 5: Solve for x
    x = 8,253,631,441.66/101,783.84
  6. Step 6: Final answer
    x = 81,089.81

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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.