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Finding the Fourth Proportional to 478,049.56, 717,067.86 and 162,726.28

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Solution

The fourth proportional to 478,049.56, 717,067.86 and 162,726.28 is: 244,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,049.56 : 717,067.86 = 162,726.28 : x
  2. Step 2: Convert to fraction form
    478,049.56/717,067.86 = 162,726.28/x
  3. Step 3: Cross multiply
    478,049.56x = 717,067.86 × 162,726.28
  4. Step 4: Simplify right side
    478,049.56x = 116,685,785,365.36
  5. Step 5: Solve for x
    x = 116,685,785,365.36/478,049.56
  6. Step 6: Final answer
    x = 244,087.21

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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.