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Finding the Fourth Proportional to 109,879.46, 151,633.74 and 59,578.46

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Solution

The fourth proportional to 109,879.46, 151,633.74 and 59,578.46 is: 82,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.46 : 151,633.74 = 59,578.46 : x
  2. Step 2: Convert to fraction form
    109,879.46/151,633.74 = 59,578.46/x
  3. Step 3: Cross multiply
    109,879.46x = 151,633.74 × 59,578.46
  4. Step 4: Simplify right side
    109,879.46x = 9,034,104,713.24
  5. Step 5: Solve for x
    x = 9,034,104,713.24/109,879.46
  6. Step 6: Final answer
    x = 82,218.32

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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.