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Finding the Fourth Proportional to 104,643.42, 156,912.21 and 34,499.58

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Solution

The fourth proportional to 104,643.42, 156,912.21 and 34,499.58 is: 51,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.42 : 156,912.21 = 34,499.58 : x
  2. Step 2: Convert to fraction form
    104,643.42/156,912.21 = 34,499.58/x
  3. Step 3: Cross multiply
    104,643.42x = 156,912.21 × 34,499.58
  4. Step 4: Simplify right side
    104,643.42x = 5,413,405,341.87
  5. Step 5: Solve for x
    x = 5,413,405,341.87/104,643.42
  6. Step 6: Final answer
    x = 51,731.92

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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.