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Finding the Fourth Proportional to 400,197.15, 600,074.19 and 163,705.95

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Solution

The fourth proportional to 400,197.15, 600,074.19 and 163,705.95 is: 245,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,197.15 : 600,074.19 = 163,705.95 : x
  2. Step 2: Convert to fraction form
    400,197.15/600,074.19 = 163,705.95/x
  3. Step 3: Cross multiply
    400,197.15x = 600,074.19 × 163,705.95
  4. Step 4: Simplify right side
    400,197.15x = 98,235,715,344.43
  5. Step 5: Solve for x
    x = 98,235,715,344.43/400,197.15
  6. Step 6: Final answer
    x = 245,468.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.