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Finding the Fourth Proportional to 326,851.51, 490,425.13 and 166,844.81

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Solution

The fourth proportional to 326,851.51, 490,425.13 and 166,844.81 is: 250,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,851.51 : 490,425.13 = 166,844.81 : x
  2. Step 2: Convert to fraction form
    326,851.51/490,425.13 = 166,844.81/x
  3. Step 3: Cross multiply
    326,851.51x = 490,425.13 × 166,844.81
  4. Step 4: Simplify right side
    326,851.51x = 81,824,887,634.08
  5. Step 5: Solve for x
    x = 81,824,887,634.08/326,851.51
  6. Step 6: Final answer
    x = 250,342.69

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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.