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Finding the Fourth Proportional to 201,396.05, 277,928.30 and 109,515.62

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Solution

The fourth proportional to 201,396.05, 277,928.30 and 109,515.62 is: 151,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,396.05 : 277,928.30 = 109,515.62 : x
  2. Step 2: Convert to fraction form
    201,396.05/277,928.30 = 109,515.62/x
  3. Step 3: Cross multiply
    201,396.05x = 277,928.30 × 109,515.62
  4. Step 4: Simplify right side
    201,396.05x = 30,437,491,058.66
  5. Step 5: Solve for x
    x = 30,437,491,058.66/201,396.05
  6. Step 6: Final answer
    x = 151,132.51

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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.