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Finding the Fourth Proportional to 122,267.46, 183,401.79 and 55,661

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Solution

The fourth proportional to 122,267.46, 183,401.79 and 55,661 is: 83,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,267.46 : 183,401.79 = 55,661 : x
  2. Step 2: Convert to fraction form
    122,267.46/183,401.79 = 55,661/x
  3. Step 3: Cross multiply
    122,267.46x = 183,401.79 × 55,661
  4. Step 4: Simplify right side
    122,267.46x = 10,208,327,033.19
  5. Step 5: Solve for x
    x = 10,208,327,033.19/122,267.46
  6. Step 6: Final answer
    x = 83,491.77

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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.