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Finding the Fourth Proportional to 161,648.58, 223,081.93 and 90,028.60

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Solution

The fourth proportional to 161,648.58, 223,081.93 and 90,028.60 is: 124,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,648.58 : 223,081.93 = 90,028.60 : x
  2. Step 2: Convert to fraction form
    161,648.58/223,081.93 = 90,028.60/x
  3. Step 3: Cross multiply
    161,648.58x = 223,081.93 × 90,028.60
  4. Step 4: Simplify right side
    161,648.58x = 20,083,753,843.20
  5. Step 5: Solve for x
    x = 20,083,753,843.20/161,648.58
  6. Step 6: Final answer
    x = 124,243.31

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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.