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Finding the Fourth Proportional to 115,848, 173,640.96 and 53,389.44

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Solution

The fourth proportional to 115,848, 173,640.96 and 53,389.44 is: 80,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,848 : 173,640.96 = 53,389.44 : x
  2. Step 2: Convert to fraction form
    115,848/173,640.96 = 53,389.44/x
  3. Step 3: Cross multiply
    115,848x = 173,640.96 × 53,389.44
  4. Step 4: Simplify right side
    115,848x = 9,270,593,615.46
  5. Step 5: Solve for x
    x = 9,270,593,615.46/115,848
  6. Step 6: Final answer
    x = 80,023.77

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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.