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Finding the Fourth Proportional to 80,650.99, 111,310.47 and 58,064.74

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Solution

The fourth proportional to 80,650.99, 111,310.47 and 58,064.74 is: 80,138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,650.99 : 111,310.47 = 58,064.74 : x
  2. Step 2: Convert to fraction form
    80,650.99/111,310.47 = 58,064.74/x
  3. Step 3: Cross multiply
    80,650.99x = 111,310.47 × 58,064.74
  4. Step 4: Simplify right side
    80,650.99x = 6,463,213,499.83
  5. Step 5: Solve for x
    x = 6,463,213,499.83/80,650.99
  6. Step 6: Final answer
    x = 80,138.06

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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.