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Finding the Fourth Proportional to 71,358,195.45, 100,103,027.55 and 71,358,195.45

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Solution

The fourth proportional to 71,358,195.45, 100,103,027.55 and 71,358,195.45 is: 100,103,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,358,195.45 : 100,103,027.55 = 71,358,195.45 : x
  2. Step 2: Convert to fraction form
    71,358,195.45/100,103,027.55 = 71,358,195.45/x
  3. Step 3: Cross multiply
    71,358,195.45x = 100,103,027.55 × 71,358,195.45
  4. Step 4: Simplify right side
    71,358,195.45x = 7,143,171,405,049,635
  5. Step 5: Solve for x
    x = 7,143,171,405,049,635/71,358,195.45
  6. Step 6: Final answer
    x = 100,103,027.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.