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Finding the Fourth Proportional to 118,234.35, 163,163.40 and 84,301.95

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Solution

The fourth proportional to 118,234.35, 163,163.40 and 84,301.95 is: 116,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,234.35 : 163,163.40 = 84,301.95 : x
  2. Step 2: Convert to fraction form
    118,234.35/163,163.40 = 84,301.95/x
  3. Step 3: Cross multiply
    118,234.35x = 163,163.40 × 84,301.95
  4. Step 4: Simplify right side
    118,234.35x = 13,754,992,788.63
  5. Step 5: Solve for x
    x = 13,754,992,788.63/118,234.35
  6. Step 6: Final answer
    x = 116,336.69

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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.