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Finding the Fourth Proportional to 177,810.80, 266,716.20 and 149,817.20

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Solution

The fourth proportional to 177,810.80, 266,716.20 and 149,817.20 is: 224,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,810.80 : 266,716.20 = 149,817.20 : x
  2. Step 2: Convert to fraction form
    177,810.80/266,716.20 = 149,817.20/x
  3. Step 3: Cross multiply
    177,810.80x = 266,716.20 × 149,817.20
  4. Step 4: Simplify right side
    177,810.80x = 39,958,674,278.64
  5. Step 5: Solve for x
    x = 39,958,674,278.64/177,810.80
  6. Step 6: Final answer
    x = 224,725.80

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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.