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Finding the Fourth Proportional to 447,345.39, 670,810.73 and 166,787.31

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Solution

The fourth proportional to 447,345.39, 670,810.73 and 166,787.31 is: 250,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,345.39 : 670,810.73 = 166,787.31 : x
  2. Step 2: Convert to fraction form
    447,345.39/670,810.73 = 166,787.31/x
  3. Step 3: Cross multiply
    447,345.39x = 670,810.73 × 166,787.31
  4. Step 4: Simplify right side
    447,345.39x = 111,882,716,341.90
  5. Step 5: Solve for x
    x = 111,882,716,341.90/447,345.39
  6. Step 6: Final answer
    x = 250,103.65

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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.