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Finding the Fourth Proportional to 132,245.69, 182,530.80 and 75,689.87

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Solution

The fourth proportional to 132,245.69, 182,530.80 and 75,689.87 is: 104,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,245.69 : 182,530.80 = 75,689.87 : x
  2. Step 2: Convert to fraction form
    132,245.69/182,530.80 = 75,689.87/x
  3. Step 3: Cross multiply
    132,245.69x = 182,530.80 × 75,689.87
  4. Step 4: Simplify right side
    132,245.69x = 13,815,731,610.34
  5. Step 5: Solve for x
    x = 13,815,731,610.34/132,245.69
  6. Step 6: Final answer
    x = 104,470.19

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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.