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Finding the Fourth Proportional to 330,980.58, 496,544.63 and 120,618.52

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Solution

The fourth proportional to 330,980.58, 496,544.63 and 120,618.52 is: 180,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,980.58 : 496,544.63 = 120,618.52 : x
  2. Step 2: Convert to fraction form
    330,980.58/496,544.63 = 120,618.52/x
  3. Step 3: Cross multiply
    330,980.58x = 496,544.63 × 120,618.52
  4. Step 4: Simplify right side
    330,980.58x = 59,892,477,218.57
  5. Step 5: Solve for x
    x = 59,892,477,218.57/330,980.58
  6. Step 6: Final answer
    x = 180,954.66

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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.