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Finding the Fourth Proportional to 73,197.10, 109,795.11 and 20,605.42

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Solution

The fourth proportional to 73,197.10, 109,795.11 and 20,605.42 is: 30,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,197.10 : 109,795.11 = 20,605.42 : x
  2. Step 2: Convert to fraction form
    73,197.10/109,795.11 = 20,605.42/x
  3. Step 3: Cross multiply
    73,197.10x = 109,795.11 × 20,605.42
  4. Step 4: Simplify right side
    73,197.10x = 2,262,374,355.50
  5. Step 5: Solve for x
    x = 2,262,374,355.50/73,197.10
  6. Step 6: Final answer
    x = 30,907.98

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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.