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Finding the Fourth Proportional to 69,093.37, 103,101.17 and 61,646.63

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Solution

The fourth proportional to 69,093.37, 103,101.17 and 61,646.63 is: 91,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,093.37 : 103,101.17 = 61,646.63 : x
  2. Step 2: Convert to fraction form
    69,093.37/103,101.17 = 61,646.63/x
  3. Step 3: Cross multiply
    69,093.37x = 103,101.17 × 61,646.63
  4. Step 4: Simplify right side
    69,093.37x = 6,355,839,679.56
  5. Step 5: Solve for x
    x = 6,355,839,679.56/69,093.37
  6. Step 6: Final answer
    x = 91,989.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.