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Finding the Fourth Proportional to 99,822,709.32, 137,752,801.03 and 55,770,039.02

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Solution

The fourth proportional to 99,822,709.32, 137,752,801.03 and 55,770,039.02 is: 76,961,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,822,709.32 : 137,752,801.03 = 55,770,039.02 : x
  2. Step 2: Convert to fraction form
    99,822,709.32/137,752,801.03 = 55,770,039.02/x
  3. Step 3: Cross multiply
    99,822,709.32x = 137,752,801.03 × 55,770,039.02
  4. Step 4: Simplify right side
    99,822,709.32x = 7,682,479,087,815,401
  5. Step 5: Solve for x
    x = 7,682,479,087,815,401/99,822,709.32
  6. Step 6: Final answer
    x = 76,961,235.97

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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.