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Finding the Fourth Proportional to 118,805.54, 163,956.17 and 67,826.57

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Solution

The fourth proportional to 118,805.54, 163,956.17 and 67,826.57 is: 93,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,805.54 : 163,956.17 = 67,826.57 : x
  2. Step 2: Convert to fraction form
    118,805.54/163,956.17 = 67,826.57/x
  3. Step 3: Cross multiply
    118,805.54x = 163,956.17 × 67,826.57
  4. Step 4: Simplify right side
    118,805.54x = 11,120,584,302.30
  5. Step 5: Solve for x
    x = 11,120,584,302.30/118,805.54
  6. Step 6: Final answer
    x = 93,603.25

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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.