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Finding the Fourth Proportional to 113,961.66, 157,267.09 and 63,660.66

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Solution

The fourth proportional to 113,961.66, 157,267.09 and 63,660.66 is: 87,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,961.66 : 157,267.09 = 63,660.66 : x
  2. Step 2: Convert to fraction form
    113,961.66/157,267.09 = 63,660.66/x
  3. Step 3: Cross multiply
    113,961.66x = 157,267.09 × 63,660.66
  4. Step 4: Simplify right side
    113,961.66x = 10,011,726,235.50
  5. Step 5: Solve for x
    x = 10,011,726,235.50/113,961.66
  6. Step 6: Final answer
    x = 87,851.71

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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.