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Finding the Fourth Proportional to 120,830.88, 181,246.44 and 45,933.44

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Solution

The fourth proportional to 120,830.88, 181,246.44 and 45,933.44 is: 68,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830.88 : 181,246.44 = 45,933.44 : x
  2. Step 2: Convert to fraction form
    120,830.88/181,246.44 = 45,933.44/x
  3. Step 3: Cross multiply
    120,830.88x = 181,246.44 × 45,933.44
  4. Step 4: Simplify right side
    120,830.88x = 8,325,272,476.95
  5. Step 5: Solve for x
    x = 8,325,272,476.95/120,830.88
  6. Step 6: Final answer
    x = 68,900.21

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1.5x scale

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.