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Finding the Fourth Proportional to 113,568.86, 156,761.77 and 73,251.51

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Solution

The fourth proportional to 113,568.86, 156,761.77 and 73,251.51 is: 101,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,568.86 : 156,761.77 = 73,251.51 : x
  2. Step 2: Convert to fraction form
    113,568.86/156,761.77 = 73,251.51/x
  3. Step 3: Cross multiply
    113,568.86x = 156,761.77 × 73,251.51
  4. Step 4: Simplify right side
    113,568.86x = 11,483,036,948.80
  5. Step 5: Solve for x
    x = 11,483,036,948.80/113,568.86
  6. Step 6: Final answer
    x = 101,110.79

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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.