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Finding the Fourth Proportional to 169,707.78, 254,562.39 and 57,388.59

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Solution

The fourth proportional to 169,707.78, 254,562.39 and 57,388.59 is: 86,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,707.78 : 254,562.39 = 57,388.59 : x
  2. Step 2: Convert to fraction form
    169,707.78/254,562.39 = 57,388.59/x
  3. Step 3: Cross multiply
    169,707.78x = 254,562.39 × 57,388.59
  4. Step 4: Simplify right side
    169,707.78x = 14,608,976,629.13
  5. Step 5: Solve for x
    x = 14,608,976,629.13/169,707.78
  6. Step 6: Final answer
    x = 86,083.13

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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.