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Finding the Fourth Proportional to 122,523.86, 169,086.74 and 68,810.04

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Solution

The fourth proportional to 122,523.86, 169,086.74 and 68,810.04 is: 94,959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,523.86 : 169,086.74 = 68,810.04 : x
  2. Step 2: Convert to fraction form
    122,523.86/169,086.74 = 68,810.04/x
  3. Step 3: Cross multiply
    122,523.86x = 169,086.74 × 68,810.04
  4. Step 4: Simplify right side
    122,523.86x = 11,634,864,998.82
  5. Step 5: Solve for x
    x = 11,634,864,998.82/122,523.86
  6. Step 6: Final answer
    x = 94,959.99

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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.