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Finding the Fourth Proportional to 326,833.59, 490,237.02 and 90,170.22

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Solution

The fourth proportional to 326,833.59, 490,237.02 and 90,170.22 is: 135,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,833.59 : 490,237.02 = 90,170.22 : x
  2. Step 2: Convert to fraction form
    326,833.59/490,237.02 = 90,170.22/x
  3. Step 3: Cross multiply
    326,833.59x = 490,237.02 × 90,170.22
  4. Step 4: Simplify right side
    326,833.59x = 44,204,779,945.54
  5. Step 5: Solve for x
    x = 44,204,779,945.54/326,833.59
  6. Step 6: Final answer
    x = 135,251.64

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1.5x scale

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.