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Finding the Fourth Proportional to 361,308.86, 542,053.21 and 108,593.43

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Solution

The fourth proportional to 361,308.86, 542,053.21 and 108,593.43 is: 162,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,308.86 : 542,053.21 = 108,593.43 : x
  2. Step 2: Convert to fraction form
    361,308.86/542,053.21 = 108,593.43/x
  3. Step 3: Cross multiply
    361,308.86x = 542,053.21 × 108,593.43
  4. Step 4: Simplify right side
    361,308.86x = 58,863,417,316.41
  5. Step 5: Solve for x
    x = 58,863,417,316.41/361,308.86
  6. Step 6: Final answer
    x = 162,917.17

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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.