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Finding the Fourth Proportional to 118,539.64, 163,579.48 and 67,563.42

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Solution

The fourth proportional to 118,539.64, 163,579.48 and 67,563.42 is: 93,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,539.64 : 163,579.48 = 67,563.42 : x
  2. Step 2: Convert to fraction form
    118,539.64/163,579.48 = 67,563.42/x
  3. Step 3: Cross multiply
    118,539.64x = 163,579.48 × 67,563.42
  4. Step 4: Simplify right side
    118,539.64x = 11,051,989,110.62
  5. Step 5: Solve for x
    x = 11,051,989,110.62/118,539.64
  6. Step 6: Final answer
    x = 93,234.54

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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.