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Finding the Fourth Proportional to 101,496.68, 140,063.46 and 56,174.66

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Solution

The fourth proportional to 101,496.68, 140,063.46 and 56,174.66 is: 77,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,496.68 : 140,063.46 = 56,174.66 : x
  2. Step 2: Convert to fraction form
    101,496.68/140,063.46 = 56,174.66/x
  3. Step 3: Cross multiply
    101,496.68x = 140,063.46 × 56,174.66
  4. Step 4: Simplify right side
    101,496.68x = 7,868,017,243.92
  5. Step 5: Solve for x
    x = 7,868,017,243.92/101,496.68
  6. Step 6: Final answer
    x = 77,519.95

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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.