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Finding the Fourth Proportional to 150,491.96, 207,607.35 and 90,050.43

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Solution

The fourth proportional to 150,491.96, 207,607.35 and 90,050.43 is: 124,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,491.96 : 207,607.35 = 90,050.43 : x
  2. Step 2: Convert to fraction form
    150,491.96/207,607.35 = 90,050.43/x
  3. Step 3: Cross multiply
    150,491.96x = 207,607.35 × 90,050.43
  4. Step 4: Simplify right side
    150,491.96x = 18,695,131,138.66
  5. Step 5: Solve for x
    x = 18,695,131,138.66/150,491.96
  6. Step 6: Final answer
    x = 124,226.78

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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.