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Finding the Fourth Proportional to 183,815.20, 275,722.80 and 154,290.70

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Solution

The fourth proportional to 183,815.20, 275,722.80 and 154,290.70 is: 231,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,815.20 : 275,722.80 = 154,290.70 : x
  2. Step 2: Convert to fraction form
    183,815.20/275,722.80 = 154,290.70/x
  3. Step 3: Cross multiply
    183,815.20x = 275,722.80 × 154,290.70
  4. Step 4: Simplify right side
    183,815.20x = 42,541,463,817.96
  5. Step 5: Solve for x
    x = 42,541,463,817.96/183,815.20
  6. Step 6: Final answer
    x = 231,436.05

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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.