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Finding the Fourth Proportional to 352,065.35, 485,876.98 and 199,106.57

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Solution

The fourth proportional to 352,065.35, 485,876.98 and 199,106.57 is: 274,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,065.35 : 485,876.98 = 199,106.57 : x
  2. Step 2: Convert to fraction form
    352,065.35/485,876.98 = 199,106.57/x
  3. Step 3: Cross multiply
    352,065.35x = 485,876.98 × 199,106.57
  4. Step 4: Simplify right side
    352,065.35x = 96,741,298,929.76
  5. Step 5: Solve for x
    x = 96,741,298,929.76/352,065.35
  6. Step 6: Final answer
    x = 274,782.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.