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Finding the Fourth Proportional to 275,290.84, 412,657.38 and 186,553.32

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Solution

The fourth proportional to 275,290.84, 412,657.38 and 186,553.32 is: 279,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,290.84 : 412,657.38 = 186,553.32 : x
  2. Step 2: Convert to fraction form
    275,290.84/412,657.38 = 186,553.32/x
  3. Step 3: Cross multiply
    275,290.84x = 412,657.38 × 186,553.32
  4. Step 4: Simplify right side
    275,290.84x = 76,982,604,261.50
  5. Step 5: Solve for x
    x = 76,982,604,261.50/275,290.84
  6. Step 6: Final answer
    x = 279,640.99

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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.