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Finding the Fourth Proportional to 207,814.15, 311,609.44 and 107,726.23

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Solution

The fourth proportional to 207,814.15, 311,609.44 and 107,726.23 is: 161,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,814.15 : 311,609.44 = 107,726.23 : x
  2. Step 2: Convert to fraction form
    207,814.15/311,609.44 = 107,726.23/x
  3. Step 3: Cross multiply
    207,814.15x = 311,609.44 × 107,726.23
  4. Step 4: Simplify right side
    207,814.15x = 33,568,510,203.61
  5. Step 5: Solve for x
    x = 33,568,510,203.61/207,814.15
  6. Step 6: Final answer
    x = 161,531.40

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1.5x scale

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.