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Finding the Fourth Proportional to 247,877.76, 341,945.39 and 161,887.07

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Solution

The fourth proportional to 247,877.76, 341,945.39 and 161,887.07 is: 223,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,877.76 : 341,945.39 = 161,887.07 : x
  2. Step 2: Convert to fraction form
    247,877.76/341,945.39 = 161,887.07/x
  3. Step 3: Cross multiply
    247,877.76x = 341,945.39 × 161,887.07
  4. Step 4: Simplify right side
    247,877.76x = 55,356,538,546.69
  5. Step 5: Solve for x
    x = 55,356,538,546.69/247,877.76
  6. Step 6: Final answer
    x = 223,321.93

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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.