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Finding the Fourth Proportional to 70,818.73, 106,244.60 and 23,431.91

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Solution

The fourth proportional to 70,818.73, 106,244.60 and 23,431.91 is: 35,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,818.73 : 106,244.60 = 23,431.91 : x
  2. Step 2: Convert to fraction form
    70,818.73/106,244.60 = 23,431.91/x
  3. Step 3: Cross multiply
    70,818.73x = 106,244.60 × 23,431.91
  4. Step 4: Simplify right side
    70,818.73x = 2,489,513,256.80
  5. Step 5: Solve for x
    x = 2,489,513,256.80/70,818.73
  6. Step 6: Final answer
    x = 35,153.32

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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.