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Finding the Fourth Proportional to 61,201.94, 91,794.26 and 19,643.54

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Solution

The fourth proportional to 61,201.94, 91,794.26 and 19,643.54 is: 29,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,201.94 : 91,794.26 = 19,643.54 : x
  2. Step 2: Convert to fraction form
    61,201.94/91,794.26 = 19,643.54/x
  3. Step 3: Cross multiply
    61,201.94x = 91,794.26 × 19,643.54
  4. Step 4: Simplify right side
    61,201.94x = 1,803,163,808.22
  5. Step 5: Solve for x
    x = 1,803,163,808.22/61,201.94
  6. Step 6: Final answer
    x = 29,462.53

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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.