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Finding the Fourth Proportional to 122,363.01, 168,858.37 and 67,912.01

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Solution

The fourth proportional to 122,363.01, 168,858.37 and 67,912.01 is: 93,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,363.01 : 168,858.37 = 67,912.01 : x
  2. Step 2: Convert to fraction form
    122,363.01/168,858.37 = 67,912.01/x
  3. Step 3: Cross multiply
    122,363.01x = 168,858.37 × 67,912.01
  4. Step 4: Simplify right side
    122,363.01x = 11,467,511,312.02
  5. Step 5: Solve for x
    x = 11,467,511,312.02/122,363.01
  6. Step 6: Final answer
    x = 93,717.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.