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Finding the Fourth Proportional to 107,954.87, 148,977.99 and 60,211.31

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Solution

The fourth proportional to 107,954.87, 148,977.99 and 60,211.31 is: 83,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,954.87 : 148,977.99 = 60,211.31 : x
  2. Step 2: Convert to fraction form
    107,954.87/148,977.99 = 60,211.31/x
  3. Step 3: Cross multiply
    107,954.87x = 148,977.99 × 60,211.31
  4. Step 4: Simplify right side
    107,954.87x = 8,970,159,638.01
  5. Step 5: Solve for x
    x = 8,970,159,638.01/107,954.87
  6. Step 6: Final answer
    x = 83,091.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.