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Finding the Fourth Proportional to 290,029.01, 435,191.13 and 132,236.96

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Solution

The fourth proportional to 290,029.01, 435,191.13 and 132,236.96 is: 198,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,029.01 : 435,191.13 = 132,236.96 : x
  2. Step 2: Convert to fraction form
    290,029.01/435,191.13 = 132,236.96/x
  3. Step 3: Cross multiply
    290,029.01x = 435,191.13 × 132,236.96
  4. Step 4: Simplify right side
    290,029.01x = 57,548,349,874.21
  5. Step 5: Solve for x
    x = 57,548,349,874.21/290,029.01
  6. Step 6: Final answer
    x = 198,422.74

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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.