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Finding the Fourth Proportional to 131,466.20, 197,220.90 and 56,622.20

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Solution

The fourth proportional to 131,466.20, 197,220.90 and 56,622.20 is: 84,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,466.20 : 197,220.90 = 56,622.20 : x
  2. Step 2: Convert to fraction form
    131,466.20/197,220.90 = 56,622.20/x
  3. Step 3: Cross multiply
    131,466.20x = 197,220.90 × 56,622.20
  4. Step 4: Simplify right side
    131,466.20x = 11,167,081,243.98
  5. Step 5: Solve for x
    x = 11,167,081,243.98/131,466.20
  6. Step 6: Final answer
    x = 84,942.60

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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.