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Finding the Fourth Proportional to 106,368.56, 146,785.73 and 58,621.89

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Solution

The fourth proportional to 106,368.56, 146,785.73 and 58,621.89 is: 80,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,368.56 : 146,785.73 = 58,621.89 : x
  2. Step 2: Convert to fraction form
    106,368.56/146,785.73 = 58,621.89/x
  3. Step 3: Cross multiply
    106,368.56x = 146,785.73 × 58,621.89
  4. Step 4: Simplify right side
    106,368.56x = 8,604,856,624.52
  5. Step 5: Solve for x
    x = 8,604,856,624.52/106,368.56
  6. Step 6: Final answer
    x = 80,896.62

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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.