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Finding the Fourth Proportional to 132,474.88, 182,722.80 and 89,959.60

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Solution

The fourth proportional to 132,474.88, 182,722.80 and 89,959.60 is: 124,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,474.88 : 182,722.80 = 89,959.60 : x
  2. Step 2: Convert to fraction form
    132,474.88/182,722.80 = 89,959.60/x
  3. Step 3: Cross multiply
    132,474.88x = 182,722.80 × 89,959.60
  4. Step 4: Simplify right side
    132,474.88x = 16,437,669,998.88
  5. Step 5: Solve for x
    x = 16,437,669,998.88/132,474.88
  6. Step 6: Final answer
    x = 124,081.41

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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.