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Finding the Fourth Proportional to 203,774.30, 305,661.45 and 151,286.30

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Solution

The fourth proportional to 203,774.30, 305,661.45 and 151,286.30 is: 226,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,774.30 : 305,661.45 = 151,286.30 : x
  2. Step 2: Convert to fraction form
    203,774.30/305,661.45 = 151,286.30/x
  3. Step 3: Cross multiply
    203,774.30x = 305,661.45 × 151,286.30
  4. Step 4: Simplify right side
    203,774.30x = 46,242,389,823.14
  5. Step 5: Solve for x
    x = 46,242,389,823.14/203,774.30
  6. Step 6: Final answer
    x = 226,929.45

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1.5x scale

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.