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Finding the Fourth Proportional to 118,257.83, 163,170.84 and 75,221.66

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Solution

The fourth proportional to 118,257.83, 163,170.84 and 75,221.66 is: 103,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,257.83 : 163,170.84 = 75,221.66 : x
  2. Step 2: Convert to fraction form
    118,257.83/163,170.84 = 75,221.66/x
  3. Step 3: Cross multiply
    118,257.83x = 163,170.84 × 75,221.66
  4. Step 4: Simplify right side
    118,257.83x = 12,273,980,797.44
  5. Step 5: Solve for x
    x = 12,273,980,797.44/118,257.83
  6. Step 6: Final answer
    x = 103,790.00

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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.