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Finding the Fourth Proportional to 132,524,692.40, 198,668,843.40 and 51,726,868.40

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Solution

The fourth proportional to 132,524,692.40, 198,668,843.40 and 51,726,868.40 is: 77,544,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,524,692.40 : 198,668,843.40 = 51,726,868.40 : x
  2. Step 2: Convert to fraction form
    132,524,692.40/198,668,843.40 = 51,726,868.40/x
  3. Step 3: Cross multiply
    132,524,692.40x = 198,668,843.40 × 51,726,868.40
  4. Step 4: Simplify right side
    132,524,692.40x = 10,276,517,117,732,008
  5. Step 5: Solve for x
    x = 10,276,517,117,732,008/132,524,692.40
  6. Step 6: Final answer
    x = 77,544,168.80

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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.