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Finding the Fourth Proportional to 122,179.68, 183,211.60 and 47,334.88

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Solution

The fourth proportional to 122,179.68, 183,211.60 and 47,334.88 is: 70,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,179.68 : 183,211.60 = 47,334.88 : x
  2. Step 2: Convert to fraction form
    122,179.68/183,211.60 = 47,334.88/x
  3. Step 3: Cross multiply
    122,179.68x = 183,211.60 × 47,334.88
  4. Step 4: Simplify right side
    122,179.68x = 8,672,299,100.61
  5. Step 5: Solve for x
    x = 8,672,299,100.61/122,179.68
  6. Step 6: Final answer
    x = 70,979.88

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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.