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Finding the Fourth Proportional to 274,072.01, 378,222.06 and 153,219.90

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Solution

The fourth proportional to 274,072.01, 378,222.06 and 153,219.90 is: 211,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,072.01 : 378,222.06 = 153,219.90 : x
  2. Step 2: Convert to fraction form
    274,072.01/378,222.06 = 153,219.90/x
  3. Step 3: Cross multiply
    274,072.01x = 378,222.06 × 153,219.90
  4. Step 4: Simplify right side
    274,072.01x = 57,951,147,342.04
  5. Step 5: Solve for x
    x = 57,951,147,342.04/274,072.01
  6. Step 6: Final answer
    x = 211,444.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.