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Finding the Fourth Proportional to 192,638.36, 265,835.04 and 107,755.76

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Solution

The fourth proportional to 192,638.36, 265,835.04 and 107,755.76 is: 148,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,638.36 : 265,835.04 = 107,755.76 : x
  2. Step 2: Convert to fraction form
    192,638.36/265,835.04 = 107,755.76/x
  3. Step 3: Cross multiply
    192,638.36x = 265,835.04 × 107,755.76
  4. Step 4: Simplify right side
    192,638.36x = 28,645,256,769.83
  5. Step 5: Solve for x
    x = 28,645,256,769.83/192,638.36
  6. Step 6: Final answer
    x = 148,699.65

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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.