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Finding the Fourth Proportional to 161,873.34, 223,385.45 and 90,257.90

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Solution

The fourth proportional to 161,873.34, 223,385.45 and 90,257.90 is: 124,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,873.34 : 223,385.45 = 90,257.90 : x
  2. Step 2: Convert to fraction form
    161,873.34/223,385.45 = 90,257.90/x
  3. Step 3: Cross multiply
    161,873.34x = 223,385.45 × 90,257.90
  4. Step 4: Simplify right side
    161,873.34x = 20,162,300,039.34
  5. Step 5: Solve for x
    x = 20,162,300,039.34/161,873.34
  6. Step 6: Final answer
    x = 124,556.03

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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.