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Finding the Fourth Proportional to 120,671.70, 180,766.98 and 94,252.74

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Solution

The fourth proportional to 120,671.70, 180,766.98 and 94,252.74 is: 141,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,671.70 : 180,766.98 = 94,252.74 : x
  2. Step 2: Convert to fraction form
    120,671.70/180,766.98 = 94,252.74/x
  3. Step 3: Cross multiply
    120,671.70x = 180,766.98 × 94,252.74
  4. Step 4: Simplify right side
    120,671.70x = 17,037,783,166.53
  5. Step 5: Solve for x
    x = 17,037,783,166.53/120,671.70
  6. Step 6: Final answer
    x = 141,191.21

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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.