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Finding the Fourth Proportional to 236,798.82, 355,193.21 and 76,874.51

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Solution

The fourth proportional to 236,798.82, 355,193.21 and 76,874.51 is: 115,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,798.82 : 355,193.21 = 76,874.51 : x
  2. Step 2: Convert to fraction form
    236,798.82/355,193.21 = 76,874.51/x
  3. Step 3: Cross multiply
    236,798.82x = 355,193.21 × 76,874.51
  4. Step 4: Simplify right side
    236,798.82x = 27,305,301,813.74
  5. Step 5: Solve for x
    x = 27,305,301,813.74/236,798.82
  6. Step 6: Final answer
    x = 115,310.13

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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.