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Finding the Fourth Proportional to 67,620.99, 93,285.53 and 43,755.37

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Solution

The fourth proportional to 67,620.99, 93,285.53 and 43,755.37 is: 60,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,620.99 : 93,285.53 = 43,755.37 : x
  2. Step 2: Convert to fraction form
    67,620.99/93,285.53 = 43,755.37/x
  3. Step 3: Cross multiply
    67,620.99x = 93,285.53 × 43,755.37
  4. Step 4: Simplify right side
    67,620.99x = 4,081,742,662.02
  5. Step 5: Solve for x
    x = 4,081,742,662.02/67,620.99
  6. Step 6: Final answer
    x = 60,362.07

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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.