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Finding the Fourth Proportional to 219,059.88, 328,589.88 and 92,667.36

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Solution

The fourth proportional to 219,059.88, 328,589.88 and 92,667.36 is: 139,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,059.88 : 328,589.88 = 92,667.36 : x
  2. Step 2: Convert to fraction form
    219,059.88/328,589.88 = 92,667.36/x
  3. Step 3: Cross multiply
    219,059.88x = 328,589.88 × 92,667.36
  4. Step 4: Simplify right side
    219,059.88x = 30,449,556,702.32
  5. Step 5: Solve for x
    x = 30,449,556,702.32/219,059.88
  6. Step 6: Final answer
    x = 139,001.07

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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.