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Finding the Fourth Proportional to 236,843.34, 355,340.85 and 84,938.07

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Solution

The fourth proportional to 236,843.34, 355,340.85 and 84,938.07 is: 127,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,843.34 : 355,340.85 = 84,938.07 : x
  2. Step 2: Convert to fraction form
    236,843.34/355,340.85 = 84,938.07/x
  3. Step 3: Cross multiply
    236,843.34x = 355,340.85 × 84,938.07
  4. Step 4: Simplify right side
    236,843.34x = 30,181,965,991.16
  5. Step 5: Solve for x
    x = 30,181,965,991.16/236,843.34
  6. Step 6: Final answer
    x = 127,434.30

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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.