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Finding the Fourth Proportional to 227,311.08, 340,980.28 and 69,540.90

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Solution

The fourth proportional to 227,311.08, 340,980.28 and 69,540.90 is: 104,315.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,311.08 : 340,980.28 = 69,540.90 : x
  2. Step 2: Convert to fraction form
    227,311.08/340,980.28 = 69,540.90/x
  3. Step 3: Cross multiply
    227,311.08x = 340,980.28 × 69,540.90
  4. Step 4: Simplify right side
    227,311.08x = 23,712,075,553.45
  5. Step 5: Solve for x
    x = 23,712,075,553.45/227,311.08
  6. Step 6: Final answer
    x = 104,315.53

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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.