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Finding the Fourth Proportional to 122,735.80, 184,103.70 and 103,036.60

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Solution

The fourth proportional to 122,735.80, 184,103.70 and 103,036.60 is: 154,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,735.80 : 184,103.70 = 103,036.60 : x
  2. Step 2: Convert to fraction form
    122,735.80/184,103.70 = 103,036.60/x
  3. Step 3: Cross multiply
    122,735.80x = 184,103.70 × 103,036.60
  4. Step 4: Simplify right side
    122,735.80x = 18,969,419,295.42
  5. Step 5: Solve for x
    x = 18,969,419,295.42/122,735.80
  6. Step 6: Final answer
    x = 154,554.90

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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.