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Finding the Fourth Proportional to 366,965.06, 550,388.55 and 100,663.79

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Solution

The fourth proportional to 366,965.06, 550,388.55 and 100,663.79 is: 150,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,965.06 : 550,388.55 = 100,663.79 : x
  2. Step 2: Convert to fraction form
    366,965.06/550,388.55 = 100,663.79/x
  3. Step 3: Cross multiply
    366,965.06x = 550,388.55 × 100,663.79
  4. Step 4: Simplify right side
    366,965.06x = 55,404,197,415.60
  5. Step 5: Solve for x
    x = 55,404,197,415.60/366,965.06
  6. Step 6: Final answer
    x = 150,979.49

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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.