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Finding the Fourth Proportional to 550,731.91, 825,910.75 and 190,818.76

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Solution

The fourth proportional to 550,731.91, 825,910.75 and 190,818.76 is: 286,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,731.91 : 825,910.75 = 190,818.76 : x
  2. Step 2: Convert to fraction form
    550,731.91/825,910.75 = 190,818.76/x
  3. Step 3: Cross multiply
    550,731.91x = 825,910.75 × 190,818.76
  4. Step 4: Simplify right side
    550,731.91x = 157,599,267,767.55
  5. Step 5: Solve for x
    x = 157,599,267,767.55/550,731.91
  6. Step 6: Final answer
    x = 286,163.31

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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.