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Finding the Fourth Proportional to 101,551.05, 140,096.33 and 61,242.41

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Solution

The fourth proportional to 101,551.05, 140,096.33 and 61,242.41 is: 84,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,551.05 : 140,096.33 = 61,242.41 : x
  2. Step 2: Convert to fraction form
    101,551.05/140,096.33 = 61,242.41/x
  3. Step 3: Cross multiply
    101,551.05x = 140,096.33 × 61,242.41
  4. Step 4: Simplify right side
    101,551.05x = 8,579,835,874.66
  5. Step 5: Solve for x
    x = 8,579,835,874.66/101,551.05
  6. Step 6: Final answer
    x = 84,487.91

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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.