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Finding the Fourth Proportional to 110,977.62, 153,149.25 and 63,230.82

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Solution

The fourth proportional to 110,977.62, 153,149.25 and 63,230.82 is: 87,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,977.62 : 153,149.25 = 63,230.82 : x
  2. Step 2: Convert to fraction form
    110,977.62/153,149.25 = 63,230.82/x
  3. Step 3: Cross multiply
    110,977.62x = 153,149.25 × 63,230.82
  4. Step 4: Simplify right side
    110,977.62x = 9,683,752,659.89
  5. Step 5: Solve for x
    x = 9,683,752,659.89/110,977.62
  6. Step 6: Final answer
    x = 87,258.61

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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.