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Finding the Fourth Proportional to 108,266.40, 162,425.20 and 34,394.40

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Solution

The fourth proportional to 108,266.40, 162,425.20 and 34,394.40 is: 51,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,266.40 : 162,425.20 = 34,394.40 : x
  2. Step 2: Convert to fraction form
    108,266.40/162,425.20 = 34,394.40/x
  3. Step 3: Cross multiply
    108,266.40x = 162,425.20 × 34,394.40
  4. Step 4: Simplify right side
    108,266.40x = 5,586,517,298.88
  5. Step 5: Solve for x
    x = 5,586,517,298.88/108,266.40
  6. Step 6: Final answer
    x = 51,599.73

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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.