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Finding the Fourth Proportional to 108,558.40, 162,760.80 and 41,972.80

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Solution

The fourth proportional to 108,558.40, 162,760.80 and 41,972.80 is: 62,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,558.40 : 162,760.80 = 41,972.80 : x
  2. Step 2: Convert to fraction form
    108,558.40/162,760.80 = 41,972.80/x
  3. Step 3: Cross multiply
    108,558.40x = 162,760.80 × 41,972.80
  4. Step 4: Simplify right side
    108,558.40x = 6,831,526,506.24
  5. Step 5: Solve for x
    x = 6,831,526,506.24/108,558.40
  6. Step 6: Final answer
    x = 62,929.51

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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.