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Finding the Fourth Proportional to 188,889.51, 281,952.31 and 166,470.06

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Solution

The fourth proportional to 188,889.51, 281,952.31 and 166,470.06 is: 248,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.51 : 281,952.31 = 166,470.06 : x
  2. Step 2: Convert to fraction form
    188,889.51/281,952.31 = 166,470.06/x
  3. Step 3: Cross multiply
    188,889.51x = 281,952.31 × 166,470.06
  4. Step 4: Simplify right side
    188,889.51x = 46,936,615,720.73
  5. Step 5: Solve for x
    x = 46,936,615,720.73/188,889.51
  6. Step 6: Final answer
    x = 248,487.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.