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Finding the Fourth Proportional to 209,578.83, 289,218.82 and 114,086.24

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Solution

The fourth proportional to 209,578.83, 289,218.82 and 114,086.24 is: 157,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,578.83 : 289,218.82 = 114,086.24 : x
  2. Step 2: Convert to fraction form
    209,578.83/289,218.82 = 114,086.24/x
  3. Step 3: Cross multiply
    209,578.83x = 289,218.82 × 114,086.24
  4. Step 4: Simplify right side
    209,578.83x = 32,995,888,148.87
  5. Step 5: Solve for x
    x = 32,995,888,148.87/209,578.83
  6. Step 6: Final answer
    x = 157,439.03

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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.