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Finding the Fourth Proportional to 199,331.70, 298,997.55 and 188,445.30

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Solution

The fourth proportional to 199,331.70, 298,997.55 and 188,445.30 is: 282,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331.70 : 298,997.55 = 188,445.30 : x
  2. Step 2: Convert to fraction form
    199,331.70/298,997.55 = 188,445.30/x
  3. Step 3: Cross multiply
    199,331.70x = 298,997.55 × 188,445.30
  4. Step 4: Simplify right side
    199,331.70x = 56,344,683,009.02
  5. Step 5: Solve for x
    x = 56,344,683,009.02/199,331.70
  6. Step 6: Final answer
    x = 282,667.95

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1.5x scale

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.