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Finding the Fourth Proportional to 326,983.44, 490,274.43 and 127,070.37

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Solution

The fourth proportional to 326,983.44, 490,274.43 and 127,070.37 is: 190,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,983.44 : 490,274.43 = 127,070.37 : x
  2. Step 2: Convert to fraction form
    326,983.44/490,274.43 = 127,070.37/x
  3. Step 3: Cross multiply
    326,983.44x = 490,274.43 × 127,070.37
  4. Step 4: Simplify right side
    326,983.44x = 62,299,353,221.64
  5. Step 5: Solve for x
    x = 62,299,353,221.64/326,983.44
  6. Step 6: Final answer
    x = 190,527.55

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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.