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Finding the Fourth Proportional to 361,215.09, 541,990.76 and 161,670.47

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Solution

The fourth proportional to 361,215.09, 541,990.76 and 161,670.47 is: 242,580.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,215.09 : 541,990.76 = 161,670.47 : x
  2. Step 2: Convert to fraction form
    361,215.09/541,990.76 = 161,670.47/x
  3. Step 3: Cross multiply
    361,215.09x = 541,990.76 × 161,670.47
  4. Step 4: Simplify right side
    361,215.09x = 87,623,901,451.48
  5. Step 5: Solve for x
    x = 87,623,901,451.48/361,215.09
  6. Step 6: Final answer
    x = 242,580.95

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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.