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Finding the Fourth Proportional to 146,651.61, 202,379.21 and 79,583.61

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Solution

The fourth proportional to 146,651.61, 202,379.21 and 79,583.61 is: 109,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,651.61 : 202,379.21 = 79,583.61 : x
  2. Step 2: Convert to fraction form
    146,651.61/202,379.21 = 79,583.61/x
  3. Step 3: Cross multiply
    146,651.61x = 202,379.21 × 79,583.61
  4. Step 4: Simplify right side
    146,651.61x = 16,106,068,120.75
  5. Step 5: Solve for x
    x = 16,106,068,120.75/146,651.61
  6. Step 6: Final answer
    x = 109,825.38

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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.