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Finding the Fourth Proportional to 252,348.86, 348,241.77 and 137,627.78

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Solution

The fourth proportional to 252,348.86, 348,241.77 and 137,627.78 is: 189,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,348.86 : 348,241.77 = 137,627.78 : x
  2. Step 2: Convert to fraction form
    252,348.86/348,241.77 = 137,627.78/x
  3. Step 3: Cross multiply
    252,348.86x = 348,241.77 × 137,627.78
  4. Step 4: Simplify right side
    252,348.86x = 47,927,741,708.37
  5. Step 5: Solve for x
    x = 47,927,741,708.37/252,348.86
  6. Step 6: Final answer
    x = 189,926.52

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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.