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Finding the Fourth Proportional to 132,763.91, 183,281.90 and 89,969.48

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Solution

The fourth proportional to 132,763.91, 183,281.90 and 89,969.48 is: 124,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,763.91 : 183,281.90 = 89,969.48 : x
  2. Step 2: Convert to fraction form
    132,763.91/183,281.90 = 89,969.48/x
  3. Step 3: Cross multiply
    132,763.91x = 183,281.90 × 89,969.48
  4. Step 4: Simplify right side
    132,763.91x = 16,489,777,236.41
  5. Step 5: Solve for x
    x = 16,489,777,236.41/132,763.91
  6. Step 6: Final answer
    x = 124,203.76

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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.