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Finding the Fourth Proportional to 122,570.82, 169,164.75 and 68,859.92

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Solution

The fourth proportional to 122,570.82, 169,164.75 and 68,859.92 is: 95,036.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,570.82 : 169,164.75 = 68,859.92 : x
  2. Step 2: Convert to fraction form
    122,570.82/169,164.75 = 68,859.92/x
  3. Step 3: Cross multiply
    122,570.82x = 169,164.75 × 68,859.92
  4. Step 4: Simplify right side
    122,570.82x = 11,648,671,832.96
  5. Step 5: Solve for x
    x = 11,648,671,832.96/122,570.82
  6. Step 6: Final answer
    x = 95,036.26

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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.