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Finding the Fourth Proportional to 70,910.84, 106,381.38 and 35,391.26

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Solution

The fourth proportional to 70,910.84, 106,381.38 and 35,391.26 is: 53,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,910.84 : 106,381.38 = 35,391.26 : x
  2. Step 2: Convert to fraction form
    70,910.84/106,381.38 = 35,391.26/x
  3. Step 3: Cross multiply
    70,910.84x = 106,381.38 × 35,391.26
  4. Step 4: Simplify right side
    70,910.84x = 3,764,971,477.41
  5. Step 5: Solve for x
    x = 3,764,971,477.41/70,910.84
  6. Step 6: Final answer
    x = 53,094.44

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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.