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Finding the Fourth Proportional to 352,730.88, 486,779.52 and 201,876.48

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Solution

The fourth proportional to 352,730.88, 486,779.52 and 201,876.48 is: 278,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,730.88 : 486,779.52 = 201,876.48 : x
  2. Step 2: Convert to fraction form
    352,730.88/486,779.52 = 201,876.48/x
  3. Step 3: Cross multiply
    352,730.88x = 486,779.52 × 201,876.48
  4. Step 4: Simplify right side
    352,730.88x = 98,269,336,033.69
  5. Step 5: Solve for x
    x = 98,269,336,033.69/352,730.88
  6. Step 6: Final answer
    x = 278,595.78

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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.