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Finding the Fourth Proportional to 198,693.60, 274,204.37 and 113,827.07

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Solution

The fourth proportional to 198,693.60, 274,204.37 and 113,827.07 is: 157,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,693.60 : 274,204.37 = 113,827.07 : x
  2. Step 2: Convert to fraction form
    198,693.60/274,204.37 = 113,827.07/x
  3. Step 3: Cross multiply
    198,693.60x = 274,204.37 × 113,827.07
  4. Step 4: Simplify right side
    198,693.60x = 31,211,880,018.30
  5. Step 5: Solve for x
    x = 31,211,880,018.30/198,693.60
  6. Step 6: Final answer
    x = 157,085.48

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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.