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Finding the Fourth Proportional to 108,558.34, 162,893.15 and 51,696.56

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Solution

The fourth proportional to 108,558.34, 162,893.15 and 51,696.56 is: 77,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,558.34 : 162,893.15 = 51,696.56 : x
  2. Step 2: Convert to fraction form
    108,558.34/162,893.15 = 51,696.56/x
  3. Step 3: Cross multiply
    108,558.34x = 162,893.15 × 51,696.56
  4. Step 4: Simplify right side
    108,558.34x = 8,421,015,502.56
  5. Step 5: Solve for x
    x = 8,421,015,502.56/108,558.34
  6. Step 6: Final answer
    x = 77,571.34

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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.