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Finding the Fourth Proportional to 177,321.80, 265,334.70 and 130,665.80

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Solution

The fourth proportional to 177,321.80, 265,334.70 and 130,665.80 is: 195,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,321.80 : 265,334.70 = 130,665.80 : x
  2. Step 2: Convert to fraction form
    177,321.80/265,334.70 = 130,665.80/x
  3. Step 3: Cross multiply
    177,321.80x = 265,334.70 × 130,665.80
  4. Step 4: Simplify right side
    177,321.80x = 34,670,170,843.26
  5. Step 5: Solve for x
    x = 34,670,170,843.26/177,321.80
  6. Step 6: Final answer
    x = 195,521.20

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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.