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Finding the Fourth Proportional to 169,630.82, 254,058.68 and 80,946.60

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Solution

The fourth proportional to 169,630.82, 254,058.68 and 80,946.60 is: 121,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,630.82 : 254,058.68 = 80,946.60 : x
  2. Step 2: Convert to fraction form
    169,630.82/254,058.68 = 80,946.60/x
  3. Step 3: Cross multiply
    169,630.82x = 254,058.68 × 80,946.60
  4. Step 4: Simplify right side
    169,630.82x = 20,565,185,941.76
  5. Step 5: Solve for x
    x = 20,565,185,941.76/169,630.82
  6. Step 6: Final answer
    x = 121,234.97

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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.