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Finding the Fourth Proportional to 122,679.47, 184,018.98 and 38,446.09

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Solution

The fourth proportional to 122,679.47, 184,018.98 and 38,446.09 is: 57,669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,679.47 : 184,018.98 = 38,446.09 : x
  2. Step 2: Convert to fraction form
    122,679.47/184,018.98 = 38,446.09/x
  3. Step 3: Cross multiply
    122,679.47x = 184,018.98 × 38,446.09
  4. Step 4: Simplify right side
    122,679.47x = 7,074,810,266.79
  5. Step 5: Solve for x
    x = 7,074,810,266.79/122,679.47
  6. Step 6: Final answer
    x = 57,669.06

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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.