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Finding the Fourth Proportional to 69,993.55, 96,563.53 and 43,089.31

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Solution

The fourth proportional to 69,993.55, 96,563.53 and 43,089.31 is: 59,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.55 : 96,563.53 = 43,089.31 : x
  2. Step 2: Convert to fraction form
    69,993.55/96,563.53 = 43,089.31/x
  3. Step 3: Cross multiply
    69,993.55x = 96,563.53 × 43,089.31
  4. Step 4: Simplify right side
    69,993.55x = 4,160,855,878.86
  5. Step 5: Solve for x
    x = 4,160,855,878.86/69,993.55
  6. Step 6: Final answer
    x = 59,446.28

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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.