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Finding the Fourth Proportional to 168,063.78, 231,917.10 and 92,612.28

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Solution

The fourth proportional to 168,063.78, 231,917.10 and 92,612.28 is: 127,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,063.78 : 231,917.10 = 92,612.28 : x
  2. Step 2: Convert to fraction form
    168,063.78/231,917.10 = 92,612.28/x
  3. Step 3: Cross multiply
    168,063.78x = 231,917.10 × 92,612.28
  4. Step 4: Simplify right side
    168,063.78x = 21,478,371,401.99
  5. Step 5: Solve for x
    x = 21,478,371,401.99/168,063.78
  6. Step 6: Final answer
    x = 127,798.93

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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.