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Finding the Fourth Proportional to 192,630.60, 265,871.70 and 117,203.40

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Solution

The fourth proportional to 192,630.60, 265,871.70 and 117,203.40 is: 161,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,630.60 : 265,871.70 = 117,203.40 : x
  2. Step 2: Convert to fraction form
    192,630.60/265,871.70 = 117,203.40/x
  3. Step 3: Cross multiply
    192,630.60x = 265,871.70 × 117,203.40
  4. Step 4: Simplify right side
    192,630.60x = 31,161,067,203.78
  5. Step 5: Solve for x
    x = 31,161,067,203.78/192,630.60
  6. Step 6: Final answer
    x = 161,765.93

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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.