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Finding the Fourth Proportional to 445,408.98, 668,152.19 and 125,562.96

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Solution

The fourth proportional to 445,408.98, 668,152.19 and 125,562.96 is: 188,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,408.98 : 668,152.19 = 125,562.96 : x
  2. Step 2: Convert to fraction form
    445,408.98/668,152.19 = 125,562.96/x
  3. Step 3: Cross multiply
    445,408.98x = 668,152.19 × 125,562.96
  4. Step 4: Simplify right side
    445,408.98x = 83,895,167,020.79
  5. Step 5: Solve for x
    x = 83,895,167,020.79/445,408.98
  6. Step 6: Final answer
    x = 188,355.36

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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.