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Finding the Fourth Proportional to 127,414.51, 191,269.40 and 68,365.51

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Solution

The fourth proportional to 127,414.51, 191,269.40 and 68,365.51 is: 102,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,414.51 : 191,269.40 = 68,365.51 : x
  2. Step 2: Convert to fraction form
    127,414.51/191,269.40 = 68,365.51/x
  3. Step 3: Cross multiply
    127,414.51x = 191,269.40 × 68,365.51
  4. Step 4: Simplify right side
    127,414.51x = 13,076,230,078.39
  5. Step 5: Solve for x
    x = 13,076,230,078.39/127,414.51
  6. Step 6: Final answer
    x = 102,627.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.