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Finding the Fourth Proportional to 113,162.22, 169,484.94 and 54,039.51

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Solution

The fourth proportional to 113,162.22, 169,484.94 and 54,039.51 is: 80,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,162.22 : 169,484.94 = 54,039.51 : x
  2. Step 2: Convert to fraction form
    113,162.22/169,484.94 = 54,039.51/x
  3. Step 3: Cross multiply
    113,162.22x = 169,484.94 × 54,039.51
  4. Step 4: Simplify right side
    113,162.22x = 9,158,883,109.98
  5. Step 5: Solve for x
    x = 9,158,883,109.98/113,162.22
  6. Step 6: Final answer
    x = 80,935.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.