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Finding the Fourth Proportional to 73,020.60, 109,530.90 and 41,830.20

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Solution

The fourth proportional to 73,020.60, 109,530.90 and 41,830.20 is: 62,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,020.60 : 109,530.90 = 41,830.20 : x
  2. Step 2: Convert to fraction form
    73,020.60/109,530.90 = 41,830.20/x
  3. Step 3: Cross multiply
    73,020.60x = 109,530.90 × 41,830.20
  4. Step 4: Simplify right side
    73,020.60x = 4,581,699,453.18
  5. Step 5: Solve for x
    x = 4,581,699,453.18/73,020.60
  6. Step 6: Final answer
    x = 62,745.30

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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.