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Finding the Fourth Proportional to 132,489.69, 182,826.36 and 72,059.10

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Solution

The fourth proportional to 132,489.69, 182,826.36 and 72,059.10 is: 99,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,489.69 : 182,826.36 = 72,059.10 : x
  2. Step 2: Convert to fraction form
    132,489.69/182,826.36 = 72,059.10/x
  3. Step 3: Cross multiply
    132,489.69x = 182,826.36 × 72,059.10
  4. Step 4: Simplify right side
    132,489.69x = 13,174,302,957.88
  5. Step 5: Solve for x
    x = 13,174,302,957.88/132,489.69
  6. Step 6: Final answer
    x = 99,436.44

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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.