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Finding the Fourth Proportional to 120,394.17, 180,603.20 and 44,512.59

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Solution

The fourth proportional to 120,394.17, 180,603.20 and 44,512.59 is: 66,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,394.17 : 180,603.20 = 44,512.59 : x
  2. Step 2: Convert to fraction form
    120,394.17/180,603.20 = 44,512.59/x
  3. Step 3: Cross multiply
    120,394.17x = 180,603.20 × 44,512.59
  4. Step 4: Simplify right side
    120,394.17x = 8,039,115,971.73
  5. Step 5: Solve for x
    x = 8,039,115,971.73/120,394.17
  6. Step 6: Final answer
    x = 66,773.30

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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.