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Finding the Fourth Proportional to 117,272.41, 161,836.20 and 63,557.41

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Solution

The fourth proportional to 117,272.41, 161,836.20 and 63,557.41 is: 87,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,272.41 : 161,836.20 = 63,557.41 : x
  2. Step 2: Convert to fraction form
    117,272.41/161,836.20 = 63,557.41/x
  3. Step 3: Cross multiply
    117,272.41x = 161,836.20 × 63,557.41
  4. Step 4: Simplify right side
    117,272.41x = 10,285,889,793.85
  5. Step 5: Solve for x
    x = 10,285,889,793.85/117,272.41
  6. Step 6: Final answer
    x = 87,709.38

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1.5x scale

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.