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Finding the Fourth Proportional to 255,995.65, 383,249.79 and 149,053.37

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Solution

The fourth proportional to 255,995.65, 383,249.79 and 149,053.37 is: 223,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,995.65 : 383,249.79 = 149,053.37 : x
  2. Step 2: Convert to fraction form
    255,995.65/383,249.79 = 149,053.37/x
  3. Step 3: Cross multiply
    255,995.65x = 383,249.79 × 149,053.37
  4. Step 4: Simplify right side
    255,995.65x = 57,124,673,709.42
  5. Step 5: Solve for x
    x = 57,124,673,709.42/255,995.65
  6. Step 6: Final answer
    x = 223,147.05

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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.