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Finding the Fourth Proportional to 111,951.24, 154,486.26 and 67,230.60

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Solution

The fourth proportional to 111,951.24, 154,486.26 and 67,230.60 is: 92,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,951.24 : 154,486.26 = 67,230.60 : x
  2. Step 2: Convert to fraction form
    111,951.24/154,486.26 = 67,230.60/x
  3. Step 3: Cross multiply
    111,951.24x = 154,486.26 × 67,230.60
  4. Step 4: Simplify right side
    111,951.24x = 10,386,203,951.56
  5. Step 5: Solve for x
    x = 10,386,203,951.56/111,951.24
  6. Step 6: Final answer
    x = 92,774.35

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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.