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Finding the Fourth Proportional to 613,287.48, 919,866.51 and 164,053.70

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Solution

The fourth proportional to 613,287.48, 919,866.51 and 164,053.70 is: 246,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,287.48 : 919,866.51 = 164,053.70 : x
  2. Step 2: Convert to fraction form
    613,287.48/919,866.51 = 164,053.70/x
  3. Step 3: Cross multiply
    613,287.48x = 919,866.51 × 164,053.70
  4. Step 4: Simplify right side
    613,287.48x = 150,907,499,872.25
  5. Step 5: Solve for x
    x = 150,907,499,872.25/613,287.48
  6. Step 6: Final answer
    x = 246,063.23

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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.