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Finding the Fourth Proportional to 192,641.73, 265,831.11 and 107,742.39

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Solution

The fourth proportional to 192,641.73, 265,831.11 and 107,742.39 is: 148,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,641.73 : 265,831.11 = 107,742.39 : x
  2. Step 2: Convert to fraction form
    192,641.73/265,831.11 = 107,742.39/x
  3. Step 3: Cross multiply
    192,641.73x = 265,831.11 × 107,742.39
  4. Step 4: Simplify right side
    192,641.73x = 28,641,279,127.75
  5. Step 5: Solve for x
    x = 28,641,279,127.75/192,641.73
  6. Step 6: Final answer
    x = 148,676.40

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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.