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Finding the Fourth Proportional to 80,650.47, 111,285.47 and 46,189.85

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Solution

The fourth proportional to 80,650.47, 111,285.47 and 46,189.85 is: 63,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,650.47 : 111,285.47 = 46,189.85 : x
  2. Step 2: Convert to fraction form
    80,650.47/111,285.47 = 46,189.85/x
  3. Step 3: Cross multiply
    80,650.47x = 111,285.47 × 46,189.85
  4. Step 4: Simplify right side
    80,650.47x = 5,140,258,379.10
  5. Step 5: Solve for x
    x = 5,140,258,379.10/80,650.47
  6. Step 6: Final answer
    x = 63,735.01

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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.