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Finding the Fourth Proportional to 198,181.50, 297,303.21 and 65,031.48

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Solution

The fourth proportional to 198,181.50, 297,303.21 and 65,031.48 is: 97,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,181.50 : 297,303.21 = 65,031.48 : x
  2. Step 2: Convert to fraction form
    198,181.50/297,303.21 = 65,031.48/x
  3. Step 3: Cross multiply
    198,181.50x = 297,303.21 × 65,031.48
  4. Step 4: Simplify right side
    198,181.50x = 19,334,067,755.05
  5. Step 5: Solve for x
    x = 19,334,067,755.05/198,181.50
  6. Step 6: Final answer
    x = 97,557.38

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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.