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Finding the Fourth Proportional to 118,644.84, 163,764.90 and 68,379.24

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Solution

The fourth proportional to 118,644.84, 163,764.90 and 68,379.24 is: 94,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,644.84 : 163,764.90 = 68,379.24 : x
  2. Step 2: Convert to fraction form
    118,644.84/163,764.90 = 68,379.24/x
  3. Step 3: Cross multiply
    118,644.84x = 163,764.90 × 68,379.24
  4. Step 4: Simplify right side
    118,644.84x = 11,198,119,400.68
  5. Step 5: Solve for x
    x = 11,198,119,400.68/118,644.84
  6. Step 6: Final answer
    x = 94,383.53

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1.5x scale

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.