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Finding the Fourth Proportional to 243,954.48, 336,692.60 and 140,568.56

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Solution

The fourth proportional to 243,954.48, 336,692.60 and 140,568.56 is: 194,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,954.48 : 336,692.60 = 140,568.56 : x
  2. Step 2: Convert to fraction form
    243,954.48/336,692.60 = 140,568.56/x
  3. Step 3: Cross multiply
    243,954.48x = 336,692.60 × 140,568.56
  4. Step 4: Simplify right side
    243,954.48x = 47,328,393,944.66
  5. Step 5: Solve for x
    x = 47,328,393,944.66/243,954.48
  6. Step 6: Final answer
    x = 194,005.02

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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.