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Finding the Fourth Proportional to 118,596.42, 163,670.32 and 68,311.62

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Solution

The fourth proportional to 118,596.42, 163,670.32 and 68,311.62 is: 94,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,596.42 : 163,670.32 = 68,311.62 : x
  2. Step 2: Convert to fraction form
    118,596.42/163,670.32 = 68,311.62/x
  3. Step 3: Cross multiply
    118,596.42x = 163,670.32 × 68,311.62
  4. Step 4: Simplify right side
    118,596.42x = 11,180,584,705.12
  5. Step 5: Solve for x
    x = 11,180,584,705.12/118,596.42
  6. Step 6: Final answer
    x = 94,274.22

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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.