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Finding the Fourth Proportional to 169,742.44, 254,609.34 and 81,058.60

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Solution

The fourth proportional to 169,742.44, 254,609.34 and 81,058.60 is: 121,585.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,742.44 : 254,609.34 = 81,058.60 : x
  2. Step 2: Convert to fraction form
    169,742.44/254,609.34 = 81,058.60/x
  3. Step 3: Cross multiply
    169,742.44x = 254,609.34 × 81,058.60
  4. Step 4: Simplify right side
    169,742.44x = 20,638,276,647.32
  5. Step 5: Solve for x
    x = 20,638,276,647.32/169,742.44
  6. Step 6: Final answer
    x = 121,585.84

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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.