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Finding the Fourth Proportional to 228,692.20, 343,038.30 and 70,936.60

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Solution

The fourth proportional to 228,692.20, 343,038.30 and 70,936.60 is: 106,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,692.20 : 343,038.30 = 70,936.60 : x
  2. Step 2: Convert to fraction form
    228,692.20/343,038.30 = 70,936.60/x
  3. Step 3: Cross multiply
    228,692.20x = 343,038.30 × 70,936.60
  4. Step 4: Simplify right side
    228,692.20x = 24,333,970,671.78
  5. Step 5: Solve for x
    x = 24,333,970,671.78/228,692.20
  6. Step 6: Final answer
    x = 106,404.90

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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.