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Finding the Fourth Proportional to 177,622.80, 266,434.20 and 154,813.20

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Solution

The fourth proportional to 177,622.80, 266,434.20 and 154,813.20 is: 232,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,622.80 : 266,434.20 = 154,813.20 : x
  2. Step 2: Convert to fraction form
    177,622.80/266,434.20 = 154,813.20/x
  3. Step 3: Cross multiply
    177,622.80x = 266,434.20 × 154,813.20
  4. Step 4: Simplify right side
    177,622.80x = 41,247,531,091.44
  5. Step 5: Solve for x
    x = 41,247,531,091.44/177,622.80
  6. Step 6: Final answer
    x = 232,219.80

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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.