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Finding the Fourth Proportional to 161,651.30, 223,073.19 and 90,027.59

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Solution

The fourth proportional to 161,651.30, 223,073.19 and 90,027.59 is: 124,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,651.30 : 223,073.19 = 90,027.59 : x
  2. Step 2: Convert to fraction form
    161,651.30/223,073.19 = 90,027.59/x
  3. Step 3: Cross multiply
    161,651.30x = 223,073.19 × 90,027.59
  4. Step 4: Simplify right side
    161,651.30x = 20,082,740,573.95
  5. Step 5: Solve for x
    x = 20,082,740,573.95/161,651.30
  6. Step 6: Final answer
    x = 124,234.95

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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.