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Finding the Fourth Proportional to 101,375,998.40, 152,063,997.60 and 79,876,913.60

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Solution

The fourth proportional to 101,375,998.40, 152,063,997.60 and 79,876,913.60 is: 119,815,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,375,998.40 : 152,063,997.60 = 79,876,913.60 : x
  2. Step 2: Convert to fraction form
    101,375,998.40/152,063,997.60 = 79,876,913.60/x
  3. Step 3: Cross multiply
    101,375,998.40x = 152,063,997.60 × 79,876,913.60
  4. Step 4: Simplify right side
    101,375,998.40x = 12,146,402,797,965,806
  5. Step 5: Solve for x
    x = 12,146,402,797,965,806/101,375,998.40
  6. Step 6: Final answer
    x = 119,815,370.40

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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.