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Finding the Fourth Proportional to 252,286.44, 348,154.92 and 139,109.46

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Solution

The fourth proportional to 252,286.44, 348,154.92 and 139,109.46 is: 191,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,286.44 : 348,154.92 = 139,109.46 : x
  2. Step 2: Convert to fraction form
    252,286.44/348,154.92 = 139,109.46/x
  3. Step 3: Cross multiply
    252,286.44x = 348,154.92 × 139,109.46
  4. Step 4: Simplify right side
    252,286.44x = 48,431,642,917.54
  5. Step 5: Solve for x
    x = 48,431,642,917.54/252,286.44
  6. Step 6: Final answer
    x = 191,970.85

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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.