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Finding the Fourth Proportional to 122,517.50, 169,062.53 and 68,792.00

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Solution

The fourth proportional to 122,517.50, 169,062.53 and 68,792.00 is: 94,926.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,517.50 : 169,062.53 = 68,792.00 : x
  2. Step 2: Convert to fraction form
    122,517.50/169,062.53 = 68,792.00/x
  3. Step 3: Cross multiply
    122,517.50x = 169,062.53 × 68,792.00
  4. Step 4: Simplify right side
    122,517.50x = 11,630,148,374.49
  5. Step 5: Solve for x
    x = 11,630,148,374.49/122,517.50
  6. Step 6: Final answer
    x = 94,926.43

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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.