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Finding the Fourth Proportional to 219,393.77, 329,103.41 and 61,634.52

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Solution

The fourth proportional to 219,393.77, 329,103.41 and 61,634.52 is: 92,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,393.77 : 329,103.41 = 61,634.52 : x
  2. Step 2: Convert to fraction form
    219,393.77/329,103.41 = 61,634.52/x
  3. Step 3: Cross multiply
    219,393.77x = 329,103.41 × 61,634.52
  4. Step 4: Simplify right side
    219,393.77x = 20,284,130,397.54
  5. Step 5: Solve for x
    x = 20,284,130,397.54/219,393.77
  6. Step 6: Final answer
    x = 92,455.36

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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.