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Finding the Fourth Proportional to 53,633.40, 80,088.90 and 43,791.90

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Solution

The fourth proportional to 53,633.40, 80,088.90 and 43,791.90 is: 65,392.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,633.40 : 80,088.90 = 43,791.90 : x
  2. Step 2: Convert to fraction form
    53,633.40/80,088.90 = 43,791.90/x
  3. Step 3: Cross multiply
    53,633.40x = 80,088.90 × 43,791.90
  4. Step 4: Simplify right side
    53,633.40x = 3,507,245,099.91
  5. Step 5: Solve for x
    x = 3,507,245,099.91/53,633.40
  6. Step 6: Final answer
    x = 65,392.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.