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Finding the Fourth Proportional to 120,014.60, 179,852.86 and 91,825.52

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Solution

The fourth proportional to 120,014.60, 179,852.86 and 91,825.52 is: 137,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,014.60 : 179,852.86 = 91,825.52 : x
  2. Step 2: Convert to fraction form
    120,014.60/179,852.86 = 91,825.52/x
  3. Step 3: Cross multiply
    120,014.60x = 179,852.86 × 91,825.52
  4. Step 4: Simplify right side
    120,014.60x = 16,515,082,392.99
  5. Step 5: Solve for x
    x = 16,515,082,392.99/120,014.60
  6. Step 6: Final answer
    x = 137,608.94

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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.