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Finding the Fourth Proportional to 132,535,806.40, 198,685,514.40 and 51,737,982.40

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Solution

The fourth proportional to 132,535,806.40, 198,685,514.40 and 51,737,982.40 is: 77,560,833.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,535,806.40 : 198,685,514.40 = 51,737,982.40 : x
  2. Step 2: Convert to fraction form
    132,535,806.40/198,685,514.40 = 51,737,982.40/x
  3. Step 3: Cross multiply
    132,535,806.40x = 198,685,514.40 × 51,737,982.40
  4. Step 4: Simplify right side
    132,535,806.40x = 10,279,587,647,162,146
  5. Step 5: Solve for x
    x = 10,279,587,647,162,146/132,535,806.40
  6. Step 6: Final answer
    x = 77,560,833.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.