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Finding the Fourth Proportional to 104,556.30, 156,746.29 and 45,347.38

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Solution

The fourth proportional to 104,556.30, 156,746.29 and 45,347.38 is: 67,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,556.30 : 156,746.29 = 45,347.38 : x
  2. Step 2: Convert to fraction form
    104,556.30/156,746.29 = 45,347.38/x
  3. Step 3: Cross multiply
    104,556.30x = 156,746.29 × 45,347.38
  4. Step 4: Simplify right side
    104,556.30x = 7,108,033,576.22
  5. Step 5: Solve for x
    x = 7,108,033,576.22/104,556.30
  6. Step 6: Final answer
    x = 67,982.83

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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.