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Finding the Fourth Proportional to 101,494.59, 140,059.05 and 56,174.46

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Solution

The fourth proportional to 101,494.59, 140,059.05 and 56,174.46 is: 77,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,494.59 : 140,059.05 = 56,174.46 : x
  2. Step 2: Convert to fraction form
    101,494.59/140,059.05 = 56,174.46/x
  3. Step 3: Cross multiply
    101,494.59x = 140,059.05 × 56,174.46
  4. Step 4: Simplify right side
    101,494.59x = 7,867,741,501.86
  5. Step 5: Solve for x
    x = 7,867,741,501.86/101,494.59
  6. Step 6: Final answer
    x = 77,518.83

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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.