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Finding the Fourth Proportional to 71,763,408.60, 107,645,112.90 and 71,763,408.60

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Solution

The fourth proportional to 71,763,408.60, 107,645,112.90 and 71,763,408.60 is: 107,645,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,763,408.60 : 107,645,112.90 = 71,763,408.60 : x
  2. Step 2: Convert to fraction form
    71,763,408.60/107,645,112.90 = 71,763,408.60/x
  3. Step 3: Cross multiply
    71,763,408.60x = 107,645,112.90 × 71,763,408.60
  4. Step 4: Simplify right side
    71,763,408.60x = 7,724,980,220,835,831
  5. Step 5: Solve for x
    x = 7,724,980,220,835,831/71,763,408.60
  6. Step 6: Final answer
    x = 107,645,112.90

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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.