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Finding the Fourth Proportional to 112,164.44, 154,748.64 and 63,761.48

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Solution

The fourth proportional to 112,164.44, 154,748.64 and 63,761.48 is: 87,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,164.44 : 154,748.64 = 63,761.48 : x
  2. Step 2: Convert to fraction form
    112,164.44/154,748.64 = 63,761.48/x
  3. Step 3: Cross multiply
    112,164.44x = 154,748.64 × 63,761.48
  4. Step 4: Simplify right side
    112,164.44x = 9,867,002,314.39
  5. Step 5: Solve for x
    x = 9,867,002,314.39/112,164.44
  6. Step 6: Final answer
    x = 87,969.08

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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.