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Finding the Fourth Proportional to 236,081.89, 325,793.01 and 128,652.02

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Solution

The fourth proportional to 236,081.89, 325,793.01 and 128,652.02 is: 177,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,081.89 : 325,793.01 = 128,652.02 : x
  2. Step 2: Convert to fraction form
    236,081.89/325,793.01 = 128,652.02/x
  3. Step 3: Cross multiply
    236,081.89x = 325,793.01 × 128,652.02
  4. Step 4: Simplify right side
    236,081.89x = 41,913,928,838.38
  5. Step 5: Solve for x
    x = 41,913,928,838.38/236,081.89
  6. Step 6: Final answer
    x = 177,539.79

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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.