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Finding the Fourth Proportional to 77,967.63, 107,596.44 and 43,977.87

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Solution

The fourth proportional to 77,967.63, 107,596.44 and 43,977.87 is: 60,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,967.63 : 107,596.44 = 43,977.87 : x
  2. Step 2: Convert to fraction form
    77,967.63/107,596.44 = 43,977.87/x
  3. Step 3: Cross multiply
    77,967.63x = 107,596.44 × 43,977.87
  4. Step 4: Simplify right side
    77,967.63x = 4,731,862,250.78
  5. Step 5: Solve for x
    x = 4,731,862,250.78/77,967.63
  6. Step 6: Final answer
    x = 60,690.09

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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.