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Finding the Fourth Proportional to 192,600.79, 265,874.22 and 115,103.79

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Solution

The fourth proportional to 192,600.79, 265,874.22 and 115,103.79 is: 158,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,600.79 : 265,874.22 = 115,103.79 : x
  2. Step 2: Convert to fraction form
    192,600.79/265,874.22 = 115,103.79/x
  3. Step 3: Cross multiply
    192,600.79x = 265,874.22 × 115,103.79
  4. Step 4: Simplify right side
    192,600.79x = 30,603,130,385.29
  5. Step 5: Solve for x
    x = 30,603,130,385.29/192,600.79
  6. Step 6: Final answer
    x = 158,894.11

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1.5x scale

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.