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Finding the Fourth Proportional to 277,190.72, 382,522.35 and 149,866.31

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Solution

The fourth proportional to 277,190.72, 382,522.35 and 149,866.31 is: 206,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,190.72 : 382,522.35 = 149,866.31 : x
  2. Step 2: Convert to fraction form
    277,190.72/382,522.35 = 149,866.31/x
  3. Step 3: Cross multiply
    277,190.72x = 382,522.35 × 149,866.31
  4. Step 4: Simplify right side
    277,190.72x = 57,327,210,425.09
  5. Step 5: Solve for x
    x = 57,327,210,425.09/277,190.72
  6. Step 6: Final answer
    x = 206,815.05

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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.