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Finding the Fourth Proportional to 127,224.40, 190,836.60 and 114,539.80

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Solution

The fourth proportional to 127,224.40, 190,836.60 and 114,539.80 is: 171,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,224.40 : 190,836.60 = 114,539.80 : x
  2. Step 2: Convert to fraction form
    127,224.40/190,836.60 = 114,539.80/x
  3. Step 3: Cross multiply
    127,224.40x = 190,836.60 × 114,539.80
  4. Step 4: Simplify right side
    127,224.40x = 21,858,385,996.68
  5. Step 5: Solve for x
    x = 21,858,385,996.68/127,224.40
  6. Step 6: Final answer
    x = 171,809.70

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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.