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Finding the Fourth Proportional to 136,930.60, 192,255.80 and 136,930.60

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Solution

The fourth proportional to 136,930.60, 192,255.80 and 136,930.60 is: 192,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,930.60 : 192,255.80 = 136,930.60 : x
  2. Step 2: Convert to fraction form
    136,930.60/192,255.80 = 136,930.60/x
  3. Step 3: Cross multiply
    136,930.60x = 192,255.80 × 136,930.60
  4. Step 4: Simplify right side
    136,930.60x = 26,325,702,047.48
  5. Step 5: Solve for x
    x = 26,325,702,047.48/136,930.60
  6. Step 6: Final answer
    x = 192,255.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.