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Finding the Fourth Proportional to 77,674.60, 107,134.14 and 50,773.96

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Solution

The fourth proportional to 77,674.60, 107,134.14 and 50,773.96 is: 70,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,674.60 : 107,134.14 = 50,773.96 : x
  2. Step 2: Convert to fraction form
    77,674.60/107,134.14 = 50,773.96/x
  3. Step 3: Cross multiply
    77,674.60x = 107,134.14 × 50,773.96
  4. Step 4: Simplify right side
    77,674.60x = 5,439,624,538.99
  5. Step 5: Solve for x
    x = 5,439,624,538.99/77,674.60
  6. Step 6: Final answer
    x = 70,030.93

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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.