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Finding the Fourth Proportional to 105,813.78, 146,027.22 and 58,068.83

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Solution

The fourth proportional to 105,813.78, 146,027.22 and 58,068.83 is: 80,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.78 : 146,027.22 = 58,068.83 : x
  2. Step 2: Convert to fraction form
    105,813.78/146,027.22 = 58,068.83/x
  3. Step 3: Cross multiply
    105,813.78x = 146,027.22 × 58,068.83
  4. Step 4: Simplify right side
    105,813.78x = 8,479,629,960.86
  5. Step 5: Solve for x
    x = 8,479,629,960.86/105,813.78
  6. Step 6: Final answer
    x = 80,137.30

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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.