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Finding the Fourth Proportional to 104,611.23, 156,990.96 and 45,464.22

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Solution

The fourth proportional to 104,611.23, 156,990.96 and 45,464.22 is: 68,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.23 : 156,990.96 = 45,464.22 : x
  2. Step 2: Convert to fraction form
    104,611.23/156,990.96 = 45,464.22/x
  3. Step 3: Cross multiply
    104,611.23x = 156,990.96 × 45,464.22
  4. Step 4: Simplify right side
    104,611.23x = 7,137,471,543.45
  5. Step 5: Solve for x
    x = 7,137,471,543.45/104,611.23
  6. Step 6: Final answer
    x = 68,228.54

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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.