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Finding the Fourth Proportional to 361,402.37, 542,009.08 and 108,615.25

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Solution

The fourth proportional to 361,402.37, 542,009.08 and 108,615.25 is: 162,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,402.37 : 542,009.08 = 108,615.25 : x
  2. Step 2: Convert to fraction form
    361,402.37/542,009.08 = 108,615.25/x
  3. Step 3: Cross multiply
    361,402.37x = 542,009.08 × 108,615.25
  4. Step 4: Simplify right side
    361,402.37x = 58,870,451,726.47
  5. Step 5: Solve for x
    x = 58,870,451,726.47/361,402.37
  6. Step 6: Final answer
    x = 162,894.48

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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.