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Finding the Fourth Proportional to 122,476.34, 169,004.31 and 68,767.22

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Solution

The fourth proportional to 122,476.34, 169,004.31 and 68,767.22 is: 94,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,476.34 : 169,004.31 = 68,767.22 : x
  2. Step 2: Convert to fraction form
    122,476.34/169,004.31 = 68,767.22/x
  3. Step 3: Cross multiply
    122,476.34x = 169,004.31 × 68,767.22
  4. Step 4: Simplify right side
    122,476.34x = 11,621,956,566.72
  5. Step 5: Solve for x
    x = 11,621,956,566.72/122,476.34
  6. Step 6: Final answer
    x = 94,891.44

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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.