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Finding the Fourth Proportional to 122,094.21, 168,486.08 and 67,644.14

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Solution

The fourth proportional to 122,094.21, 168,486.08 and 67,644.14 is: 93,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,094.21 : 168,486.08 = 67,644.14 : x
  2. Step 2: Convert to fraction form
    122,094.21/168,486.08 = 67,644.14/x
  3. Step 3: Cross multiply
    122,094.21x = 168,486.08 × 67,644.14
  4. Step 4: Simplify right side
    122,094.21x = 11,397,096,066.57
  5. Step 5: Solve for x
    x = 11,397,096,066.57/122,094.21
  6. Step 6: Final answer
    x = 93,346.74

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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.