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Finding the Fourth Proportional to 168,187.80, 252,632.70 and 141,943.80

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Solution

The fourth proportional to 168,187.80, 252,632.70 and 141,943.80 is: 213,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,187.80 : 252,632.70 = 141,943.80 : x
  2. Step 2: Convert to fraction form
    168,187.80/252,632.70 = 141,943.80/x
  3. Step 3: Cross multiply
    168,187.80x = 252,632.70 × 141,943.80
  4. Step 4: Simplify right side
    168,187.80x = 35,859,645,442.26
  5. Step 5: Solve for x
    x = 35,859,645,442.26/168,187.80
  6. Step 6: Final answer
    x = 213,211.93

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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.