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Finding the Fourth Proportional to 144,495.84, 198,961.20 and 126,490.08

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Solution

The fourth proportional to 144,495.84, 198,961.20 and 126,490.08 is: 174,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,495.84 : 198,961.20 = 126,490.08 : x
  2. Step 2: Convert to fraction form
    144,495.84/198,961.20 = 126,490.08/x
  3. Step 3: Cross multiply
    144,495.84x = 198,961.20 × 126,490.08
  4. Step 4: Simplify right side
    144,495.84x = 25,166,618,104.90
  5. Step 5: Solve for x
    x = 25,166,618,104.90/144,495.84
  6. Step 6: Final answer
    x = 174,168.46

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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.