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Finding the Fourth Proportional to 146,991.63, 220,490.01 and 41,813.40

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Solution

The fourth proportional to 146,991.63, 220,490.01 and 41,813.40 is: 62,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,991.63 : 220,490.01 = 41,813.40 : x
  2. Step 2: Convert to fraction form
    146,991.63/220,490.01 = 41,813.40/x
  3. Step 3: Cross multiply
    146,991.63x = 220,490.01 × 41,813.40
  4. Step 4: Simplify right side
    146,991.63x = 9,219,436,984.13
  5. Step 5: Solve for x
    x = 9,219,436,984.13/146,991.63
  6. Step 6: Final answer
    x = 62,720.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.