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Finding the Fourth Proportional to 177,726.80, 265,942.20 and 131,070.80

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Solution

The fourth proportional to 177,726.80, 265,942.20 and 131,070.80 is: 196,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,726.80 : 265,942.20 = 131,070.80 : x
  2. Step 2: Convert to fraction form
    177,726.80/265,942.20 = 131,070.80/x
  3. Step 3: Cross multiply
    177,726.80x = 265,942.20 × 131,070.80
  4. Step 4: Simplify right side
    177,726.80x = 34,857,256,907.76
  5. Step 5: Solve for x
    x = 34,857,256,907.76/177,726.80
  6. Step 6: Final answer
    x = 196,128.31

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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.