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Finding the Fourth Proportional to 68,193.98, 94,110.61 and 37,979.30

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Solution

The fourth proportional to 68,193.98, 94,110.61 and 37,979.30 is: 52,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,193.98 : 94,110.61 = 37,979.30 : x
  2. Step 2: Convert to fraction form
    68,193.98/94,110.61 = 37,979.30/x
  3. Step 3: Cross multiply
    68,193.98x = 94,110.61 × 37,979.30
  4. Step 4: Simplify right side
    68,193.98x = 3,574,254,772.54
  5. Step 5: Solve for x
    x = 3,574,254,772.54/68,193.98
  6. Step 6: Final answer
    x = 52,413.05

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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.