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Finding the Fourth Proportional to 101,673.14, 140,308.92 and 56,961.14

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Solution

The fourth proportional to 101,673.14, 140,308.92 and 56,961.14 is: 78,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,673.14 : 140,308.92 = 56,961.14 : x
  2. Step 2: Convert to fraction form
    101,673.14/140,308.92 = 56,961.14/x
  3. Step 3: Cross multiply
    101,673.14x = 140,308.92 × 56,961.14
  4. Step 4: Simplify right side
    101,673.14x = 7,992,156,035.37
  5. Step 5: Solve for x
    x = 7,992,156,035.37/101,673.14
  6. Step 6: Final answer
    x = 78,606.37

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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.