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Finding the Fourth Proportional to 110,913.84, 153,067.32 and 73,161.36

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Solution

The fourth proportional to 110,913.84, 153,067.32 and 73,161.36 is: 100,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,913.84 : 153,067.32 = 73,161.36 : x
  2. Step 2: Convert to fraction form
    110,913.84/153,067.32 = 73,161.36/x
  3. Step 3: Cross multiply
    110,913.84x = 153,067.32 × 73,161.36
  4. Step 4: Simplify right side
    110,913.84x = 11,198,613,302.76
  5. Step 5: Solve for x
    x = 11,198,613,302.76/110,913.84
  6. Step 6: Final answer
    x = 100,966.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.