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Finding the Fourth Proportional to 122,792.77, 169,452.21 and 69,077.82

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Solution

The fourth proportional to 122,792.77, 169,452.21 and 69,077.82 is: 95,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,792.77 : 169,452.21 = 69,077.82 : x
  2. Step 2: Convert to fraction form
    122,792.77/169,452.21 = 69,077.82/x
  3. Step 3: Cross multiply
    122,792.77x = 169,452.21 × 69,077.82
  4. Step 4: Simplify right side
    122,792.77x = 11,705,389,260.98
  5. Step 5: Solve for x
    x = 11,705,389,260.98/122,792.77
  6. Step 6: Final answer
    x = 95,326.37

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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.