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Finding the Fourth Proportional to 53,072.70, 79,622.05 and 43,601.03

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Solution

The fourth proportional to 53,072.70, 79,622.05 and 43,601.03 is: 65,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,072.70 : 79,622.05 = 43,601.03 : x
  2. Step 2: Convert to fraction form
    53,072.70/79,622.05 = 43,601.03/x
  3. Step 3: Cross multiply
    53,072.70x = 79,622.05 × 43,601.03
  4. Step 4: Simplify right side
    53,072.70x = 3,471,603,390.71
  5. Step 5: Solve for x
    x = 3,471,603,390.71/53,072.70
  6. Step 6: Final answer
    x = 65,412.22

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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.