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Finding the Fourth Proportional to 133,765.60, 200,683.20 and 38,993.64

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Solution

The fourth proportional to 133,765.60, 200,683.20 and 38,993.64 is: 58,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,765.60 : 200,683.20 = 38,993.64 : x
  2. Step 2: Convert to fraction form
    133,765.60/200,683.20 = 38,993.64/x
  3. Step 3: Cross multiply
    133,765.60x = 200,683.20 × 38,993.64
  4. Step 4: Simplify right side
    133,765.60x = 7,825,368,454.85
  5. Step 5: Solve for x
    x = 7,825,368,454.85/133,765.60
  6. Step 6: Final answer
    x = 58,500.60

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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.