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Finding the Fourth Proportional to 165,873.09, 248,825.82 and 66,009.97

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Solution

The fourth proportional to 165,873.09, 248,825.82 and 66,009.97 is: 99,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,873.09 : 248,825.82 = 66,009.97 : x
  2. Step 2: Convert to fraction form
    165,873.09/248,825.82 = 66,009.97/x
  3. Step 3: Cross multiply
    165,873.09x = 248,825.82 × 66,009.97
  4. Step 4: Simplify right side
    165,873.09x = 16,424,984,913.43
  5. Step 5: Solve for x
    x = 16,424,984,913.43/165,873.09
  6. Step 6: Final answer
    x = 99,021.40

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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.