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Finding the Fourth Proportional to 192,632.60, 265,874.46 and 117,205.40

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Solution

The fourth proportional to 192,632.60, 265,874.46 and 117,205.40 is: 161,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,632.60 : 265,874.46 = 117,205.40 : x
  2. Step 2: Convert to fraction form
    192,632.60/265,874.46 = 117,205.40/x
  3. Step 3: Cross multiply
    192,632.60x = 265,874.46 × 117,205.40
  4. Step 4: Simplify right side
    192,632.60x = 31,161,922,434.08
  5. Step 5: Solve for x
    x = 31,161,922,434.08/192,632.60
  6. Step 6: Final answer
    x = 161,768.69

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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.