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Finding the Fourth Proportional to 104,903.10, 157,401.16 and 54,971.33

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Solution

The fourth proportional to 104,903.10, 157,401.16 and 54,971.33 is: 82,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.10 : 157,401.16 = 54,971.33 : x
  2. Step 2: Convert to fraction form
    104,903.10/157,401.16 = 54,971.33/x
  3. Step 3: Cross multiply
    104,903.10x = 157,401.16 × 54,971.33
  4. Step 4: Simplify right side
    104,903.10x = 8,652,550,184.31
  5. Step 5: Solve for x
    x = 8,652,550,184.31/104,903.10
  6. Step 6: Final answer
    x = 82,481.36

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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.