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Finding the Fourth Proportional to 118,754.24, 163,879.20 and 67,765.60

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Solution

The fourth proportional to 118,754.24, 163,879.20 and 67,765.60 is: 93,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,754.24 : 163,879.20 = 67,765.60 : x
  2. Step 2: Convert to fraction form
    118,754.24/163,879.20 = 67,765.60/x
  3. Step 3: Cross multiply
    118,754.24x = 163,879.20 × 67,765.60
  4. Step 4: Simplify right side
    118,754.24x = 11,105,372,315.52
  5. Step 5: Solve for x
    x = 11,105,372,315.52/118,754.24
  6. Step 6: Final answer
    x = 93,515.59

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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.