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Finding the Fourth Proportional to 121,811.60, 182,571.60 and 62,616.80

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Solution

The fourth proportional to 121,811.60, 182,571.60 and 62,616.80 is: 93,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,811.60 : 182,571.60 = 62,616.80 : x
  2. Step 2: Convert to fraction form
    121,811.60/182,571.60 = 62,616.80/x
  3. Step 3: Cross multiply
    121,811.60x = 182,571.60 × 62,616.80
  4. Step 4: Simplify right side
    121,811.60x = 11,432,049,362.88
  5. Step 5: Solve for x
    x = 11,432,049,362.88/121,811.60
  6. Step 6: Final answer
    x = 93,850.25

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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.