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Finding the Fourth Proportional to 150,034.45, 207,067.13 and 86,374.93

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Solution

The fourth proportional to 150,034.45, 207,067.13 and 86,374.93 is: 119,208.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,034.45 : 207,067.13 = 86,374.93 : x
  2. Step 2: Convert to fraction form
    150,034.45/207,067.13 = 86,374.93/x
  3. Step 3: Cross multiply
    150,034.45x = 207,067.13 × 86,374.93
  4. Step 4: Simplify right side
    150,034.45x = 17,885,408,859.05
  5. Step 5: Solve for x
    x = 17,885,408,859.05/150,034.45
  6. Step 6: Final answer
    x = 119,208.68

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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.