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Finding the Fourth Proportional to 118,192.50, 163,105.65 and 67,891.50

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Solution

The fourth proportional to 118,192.50, 163,105.65 and 67,891.50 is: 93,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,192.50 : 163,105.65 = 67,891.50 : x
  2. Step 2: Convert to fraction form
    118,192.50/163,105.65 = 67,891.50/x
  3. Step 3: Cross multiply
    118,192.50x = 163,105.65 × 67,891.50
  4. Step 4: Simplify right side
    118,192.50x = 11,073,487,236.98
  5. Step 5: Solve for x
    x = 11,073,487,236.98/118,192.50
  6. Step 6: Final answer
    x = 93,690.27

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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.