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Finding the Fourth Proportional to 132,466.48, 182,739.44 and 78,713.43

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Solution

The fourth proportional to 132,466.48, 182,739.44 and 78,713.43 is: 108,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,466.48 : 182,739.44 = 78,713.43 : x
  2. Step 2: Convert to fraction form
    132,466.48/182,739.44 = 78,713.43/x
  3. Step 3: Cross multiply
    132,466.48x = 182,739.44 × 78,713.43
  4. Step 4: Simplify right side
    132,466.48x = 14,384,048,118.68
  5. Step 5: Solve for x
    x = 14,384,048,118.68/132,466.48
  6. Step 6: Final answer
    x = 108,586.32

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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.