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Finding the Fourth Proportional to 120,166.72, 179,797.60 and 73,787.84

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Solution

The fourth proportional to 120,166.72, 179,797.60 and 73,787.84 is: 110,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,166.72 : 179,797.60 = 73,787.84 : x
  2. Step 2: Convert to fraction form
    120,166.72/179,797.60 = 73,787.84/x
  3. Step 3: Cross multiply
    120,166.72x = 179,797.60 × 73,787.84
  4. Step 4: Simplify right side
    120,166.72x = 13,266,876,541.18
  5. Step 5: Solve for x
    x = 13,266,876,541.18/120,166.72
  6. Step 6: Final answer
    x = 110,403.92

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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.