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Finding the Fourth Proportional to 321,062.96, 443,014.82 and 192,054.74

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Solution

The fourth proportional to 321,062.96, 443,014.82 and 192,054.74 is: 265,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,062.96 : 443,014.82 = 192,054.74 : x
  2. Step 2: Convert to fraction form
    321,062.96/443,014.82 = 192,054.74/x
  3. Step 3: Cross multiply
    321,062.96x = 443,014.82 × 192,054.74
  4. Step 4: Simplify right side
    321,062.96x = 85,083,098,849.68
  5. Step 5: Solve for x
    x = 85,083,098,849.68/321,062.96
  6. Step 6: Final answer
    x = 265,004.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.