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Finding the Fourth Proportional to 196,987.80, 295,044.30 and 161,995.80

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Solution

The fourth proportional to 196,987.80, 295,044.30 and 161,995.80 is: 242,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,987.80 : 295,044.30 = 161,995.80 : x
  2. Step 2: Convert to fraction form
    196,987.80/295,044.30 = 161,995.80/x
  3. Step 3: Cross multiply
    196,987.80x = 295,044.30 × 161,995.80
  4. Step 4: Simplify right side
    196,987.80x = 47,795,937,413.94
  5. Step 5: Solve for x
    x = 47,795,937,413.94/196,987.80
  6. Step 6: Final answer
    x = 242,634.00

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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.