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Finding the Fourth Proportional to 408,810.69, 613,287.72 and 168,923.52

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Solution

The fourth proportional to 408,810.69, 613,287.72 and 168,923.52 is: 253,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,810.69 : 613,287.72 = 168,923.52 : x
  2. Step 2: Convert to fraction form
    408,810.69/613,287.72 = 168,923.52/x
  3. Step 3: Cross multiply
    408,810.69x = 613,287.72 × 168,923.52
  4. Step 4: Simplify right side
    408,810.69x = 103,598,720,435.17
  5. Step 5: Solve for x
    x = 103,598,720,435.17/408,810.69
  6. Step 6: Final answer
    x = 253,414.90

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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.