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Finding the Fourth Proportional to 107,466.20, 160,980.60 and 54,905.30

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Solution

The fourth proportional to 107,466.20, 160,980.60 and 54,905.30 is: 82,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,466.20 : 160,980.60 = 54,905.30 : x
  2. Step 2: Convert to fraction form
    107,466.20/160,980.60 = 54,905.30/x
  3. Step 3: Cross multiply
    107,466.20x = 160,980.60 × 54,905.30
  4. Step 4: Simplify right side
    107,466.20x = 8,838,688,137.18
  5. Step 5: Solve for x
    x = 8,838,688,137.18/107,466.20
  6. Step 6: Final answer
    x = 82,246.21

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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.