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Finding the Fourth Proportional to 117,633.74, 176,450.60 and 42,739.92

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Solution

The fourth proportional to 117,633.74, 176,450.60 and 42,739.92 is: 64,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,633.74 : 176,450.60 = 42,739.92 : x
  2. Step 2: Convert to fraction form
    117,633.74/176,450.60 = 42,739.92/x
  3. Step 3: Cross multiply
    117,633.74x = 176,450.60 × 42,739.92
  4. Step 4: Simplify right side
    117,633.74x = 7,541,484,634.80
  5. Step 5: Solve for x
    x = 7,541,484,634.80/117,633.74
  6. Step 6: Final answer
    x = 64,109.88

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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.