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Finding the Fourth Proportional to 110,963.97, 153,119.30 and 63,214.47

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Solution

The fourth proportional to 110,963.97, 153,119.30 and 63,214.47 is: 87,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,963.97 : 153,119.30 = 63,214.47 : x
  2. Step 2: Convert to fraction form
    110,963.97/153,119.30 = 63,214.47/x
  3. Step 3: Cross multiply
    110,963.97x = 153,119.30 × 63,214.47
  4. Step 4: Simplify right side
    110,963.97x = 9,679,355,080.20
  5. Step 5: Solve for x
    x = 9,679,355,080.20/110,963.97
  6. Step 6: Final answer
    x = 87,229.71

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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.