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Finding the Fourth Proportional to 161,611.82, 223,023.75 and 89,992.70

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Solution

The fourth proportional to 161,611.82, 223,023.75 and 89,992.70 is: 124,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,611.82 : 223,023.75 = 89,992.70 : x
  2. Step 2: Convert to fraction form
    161,611.82/223,023.75 = 89,992.70/x
  3. Step 3: Cross multiply
    161,611.82x = 223,023.75 × 89,992.70
  4. Step 4: Simplify right side
    161,611.82x = 20,070,509,426.63
  5. Step 5: Solve for x
    x = 20,070,509,426.63/161,611.82
  6. Step 6: Final answer
    x = 124,189.61

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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.