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Finding the Fourth Proportional to 118,364.22, 163,320.94 and 67,373.98

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Solution

The fourth proportional to 118,364.22, 163,320.94 and 67,373.98 is: 92,963.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,364.22 : 163,320.94 = 67,373.98 : x
  2. Step 2: Convert to fraction form
    118,364.22/163,320.94 = 67,373.98/x
  3. Step 3: Cross multiply
    118,364.22x = 163,320.94 × 67,373.98
  4. Step 4: Simplify right side
    118,364.22x = 11,003,581,745.14
  5. Step 5: Solve for x
    x = 11,003,581,745.14/118,364.22
  6. Step 6: Final answer
    x = 92,963.75

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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.