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Finding the Fourth Proportional to 355,761.25, 533,679.33 and 115,893.92

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Solution

The fourth proportional to 355,761.25, 533,679.33 and 115,893.92 is: 173,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,761.25 : 533,679.33 = 115,893.92 : x
  2. Step 2: Convert to fraction form
    355,761.25/533,679.33 = 115,893.92/x
  3. Step 3: Cross multiply
    355,761.25x = 533,679.33 × 115,893.92
  4. Step 4: Simplify right side
    355,761.25x = 61,850,191,345.47
  5. Step 5: Solve for x
    x = 61,850,191,345.47/355,761.25
  6. Step 6: Final answer
    x = 173,853.09

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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.