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Finding the Fourth Proportional to 104,556.54, 156,746.69 and 45,347.64

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Solution

The fourth proportional to 104,556.54, 156,746.69 and 45,347.64 is: 67,983.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,556.54 : 156,746.69 = 45,347.64 : x
  2. Step 2: Convert to fraction form
    104,556.54/156,746.69 = 45,347.64/x
  3. Step 3: Cross multiply
    104,556.54x = 156,746.69 × 45,347.64
  4. Step 4: Simplify right side
    104,556.54x = 7,108,092,469.31
  5. Step 5: Solve for x
    x = 7,108,092,469.31/104,556.54
  6. Step 6: Final answer
    x = 67,983.24

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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.