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Finding the Fourth Proportional to 193,651,504.80, 290,178,658.80 and 167,972,042.40

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Solution

The fourth proportional to 193,651,504.80, 290,178,658.80 and 167,972,042.40 is: 251,699,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,651,504.80 : 290,178,658.80 = 167,972,042.40 : x
  2. Step 2: Convert to fraction form
    193,651,504.80/290,178,658.80 = 167,972,042.40/x
  3. Step 3: Cross multiply
    193,651,504.80x = 290,178,658.80 × 167,972,042.40
  4. Step 4: Simplify right side
    193,651,504.80x = 48,741,901,979,528,736
  5. Step 5: Solve for x
    x = 48,741,901,979,528,736/193,651,504.80
  6. Step 6: Final answer
    x = 251,699,061.31

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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.