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Finding the Fourth Proportional to 236,084.82, 325,787.56 and 128,652.56

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Solution

The fourth proportional to 236,084.82, 325,787.56 and 128,652.56 is: 177,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,084.82 : 325,787.56 = 128,652.56 : x
  2. Step 2: Convert to fraction form
    236,084.82/325,787.56 = 128,652.56/x
  3. Step 3: Cross multiply
    236,084.82x = 325,787.56 × 128,652.56
  4. Step 4: Simplify right side
    236,084.82x = 41,913,403,610.15
  5. Step 5: Solve for x
    x = 41,913,403,610.15/236,084.82
  6. Step 6: Final answer
    x = 177,535.36

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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.