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Finding the Fourth Proportional to 122,355.60, 183,600.27 and 47,478.68

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Solution

The fourth proportional to 122,355.60, 183,600.27 and 47,478.68 is: 71,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,355.60 : 183,600.27 = 47,478.68 : x
  2. Step 2: Convert to fraction form
    122,355.60/183,600.27 = 47,478.68/x
  3. Step 3: Cross multiply
    122,355.60x = 183,600.27 × 47,478.68
  4. Step 4: Simplify right side
    122,355.60x = 8,717,098,467.24
  5. Step 5: Solve for x
    x = 8,717,098,467.24/122,355.60
  6. Step 6: Final answer
    x = 71,243.97

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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.