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Finding the Fourth Proportional to 241,238.64, 361,765.56 and 81,271.58

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Solution

The fourth proportional to 241,238.64, 361,765.56 and 81,271.58 is: 121,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,238.64 : 361,765.56 = 81,271.58 : x
  2. Step 2: Convert to fraction form
    241,238.64/361,765.56 = 81,271.58/x
  3. Step 3: Cross multiply
    241,238.64x = 361,765.56 × 81,271.58
  4. Step 4: Simplify right side
    241,238.64x = 29,401,258,650.78
  5. Step 5: Solve for x
    x = 29,401,258,650.78/241,238.64
  6. Step 6: Final answer
    x = 121,876.24

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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.