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Finding the Fourth Proportional to 108,628.40, 162,942.60 and 95,495.60

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Solution

The fourth proportional to 108,628.40, 162,942.60 and 95,495.60 is: 143,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,628.40 : 162,942.60 = 95,495.60 : x
  2. Step 2: Convert to fraction form
    108,628.40/162,942.60 = 95,495.60/x
  3. Step 3: Cross multiply
    108,628.40x = 162,942.60 × 95,495.60
  4. Step 4: Simplify right side
    108,628.40x = 15,560,301,352.56
  5. Step 5: Solve for x
    x = 15,560,301,352.56/108,628.40
  6. Step 6: Final answer
    x = 143,243.40

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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.