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Finding the Fourth Proportional to 150,452.74, 207,617.07 and 86,786.74

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Solution

The fourth proportional to 150,452.74, 207,617.07 and 86,786.74 is: 119,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,452.74 : 207,617.07 = 86,786.74 : x
  2. Step 2: Convert to fraction form
    150,452.74/207,617.07 = 86,786.74/x
  3. Step 3: Cross multiply
    150,452.74x = 207,617.07 × 86,786.74
  4. Step 4: Simplify right side
    150,452.74x = 18,018,408,673.65
  5. Step 5: Solve for x
    x = 18,018,408,673.65/150,452.74
  6. Step 6: Final answer
    x = 119,761.25

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1.5x scale

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.