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Finding the Fourth Proportional to 177,830.80, 266,098.20 and 131,174.80

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Solution

The fourth proportional to 177,830.80, 266,098.20 and 131,174.80 is: 196,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,830.80 : 266,098.20 = 131,174.80 : x
  2. Step 2: Convert to fraction form
    177,830.80/266,098.20 = 131,174.80/x
  3. Step 3: Cross multiply
    177,830.80x = 266,098.20 × 131,174.80
  4. Step 4: Simplify right side
    177,830.80x = 34,905,378,165.36
  5. Step 5: Solve for x
    x = 34,905,378,165.36/177,830.80
  6. Step 6: Final answer
    x = 196,284.21

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1.5x scale

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.