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Finding the Fourth Proportional to 122,791.92, 169,451.16 and 69,076.92

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Solution

The fourth proportional to 122,791.92, 169,451.16 and 69,076.92 is: 95,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,791.92 : 169,451.16 = 69,076.92 : x
  2. Step 2: Convert to fraction form
    122,791.92/169,451.16 = 69,076.92/x
  3. Step 3: Cross multiply
    122,791.92x = 169,451.16 × 69,076.92
  4. Step 4: Simplify right side
    122,791.92x = 11,705,164,223.23
  5. Step 5: Solve for x
    x = 11,705,164,223.23/122,791.92
  6. Step 6: Final answer
    x = 95,325.20

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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.