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Finding the Fourth Proportional to 118,326.43, 163,311.52 and 69,926.30

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Solution

The fourth proportional to 118,326.43, 163,311.52 and 69,926.30 is: 96,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,326.43 : 163,311.52 = 69,926.30 : x
  2. Step 2: Convert to fraction form
    118,326.43/163,311.52 = 69,926.30/x
  3. Step 3: Cross multiply
    118,326.43x = 163,311.52 × 69,926.30
  4. Step 4: Simplify right side
    118,326.43x = 11,419,770,340.98
  5. Step 5: Solve for x
    x = 11,419,770,340.98/118,326.43
  6. Step 6: Final answer
    x = 96,510.73

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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.