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Finding the Fourth Proportional to 144,187.54, 198,976.71 and 80,526.22

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Solution

The fourth proportional to 144,187.54, 198,976.71 and 80,526.22 is: 111,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,187.54 : 198,976.71 = 80,526.22 : x
  2. Step 2: Convert to fraction form
    144,187.54/198,976.71 = 80,526.22/x
  3. Step 3: Cross multiply
    144,187.54x = 198,976.71 × 80,526.22
  4. Step 4: Simplify right side
    144,187.54x = 16,022,842,324.34
  5. Step 5: Solve for x
    x = 16,022,842,324.34/144,187.54
  6. Step 6: Final answer
    x = 111,125.01

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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.