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Finding the Fourth Proportional to 172,806.15, 238,473.54 and 96,330.09

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Solution

The fourth proportional to 172,806.15, 238,473.54 and 96,330.09 is: 132,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,806.15 : 238,473.54 = 96,330.09 : x
  2. Step 2: Convert to fraction form
    172,806.15/238,473.54 = 96,330.09/x
  3. Step 3: Cross multiply
    172,806.15x = 238,473.54 × 96,330.09
  4. Step 4: Simplify right side
    172,806.15x = 22,972,177,570.82
  5. Step 5: Solve for x
    x = 22,972,177,570.82/172,806.15
  6. Step 6: Final answer
    x = 132,936.11

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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.