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Finding the Fourth Proportional to 439,482.57, 659,289.69 and 159,065.43

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Solution

The fourth proportional to 439,482.57, 659,289.69 and 159,065.43 is: 238,621.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,482.57 : 659,289.69 = 159,065.43 : x
  2. Step 2: Convert to fraction form
    439,482.57/659,289.69 = 159,065.43/x
  3. Step 3: Cross multiply
    439,482.57x = 659,289.69 × 159,065.43
  4. Step 4: Simplify right side
    439,482.57x = 104,870,198,034.42
  5. Step 5: Solve for x
    x = 104,870,198,034.42/439,482.57
  6. Step 6: Final answer
    x = 238,621.97

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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.