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Finding the Fourth Proportional to 361,726.64, 542,039.16 and 183,967.28

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Solution

The fourth proportional to 361,726.64, 542,039.16 and 183,967.28 is: 275,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,726.64 : 542,039.16 = 183,967.28 : x
  2. Step 2: Convert to fraction form
    361,726.64/542,039.16 = 183,967.28/x
  3. Step 3: Cross multiply
    361,726.64x = 542,039.16 × 183,967.28
  4. Step 4: Simplify right side
    361,726.64x = 99,717,469,918.68
  5. Step 5: Solve for x
    x = 99,717,469,918.68/361,726.64
  6. Step 6: Final answer
    x = 275,670.79

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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.