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Finding the Fourth Proportional to 70,372.38, 105,568.17 and 23,638.62

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Solution

The fourth proportional to 70,372.38, 105,568.17 and 23,638.62 is: 35,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,372.38 : 105,568.17 = 23,638.62 : x
  2. Step 2: Convert to fraction form
    70,372.38/105,568.17 = 23,638.62/x
  3. Step 3: Cross multiply
    70,372.38x = 105,568.17 × 23,638.62
  4. Step 4: Simplify right side
    70,372.38x = 2,495,485,854.73
  5. Step 5: Solve for x
    x = 2,495,485,854.73/70,372.38
  6. Step 6: Final answer
    x = 35,461.15

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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.