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Finding the Fourth Proportional to 75,857.35, 113,209.22 and 67,450.01

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Solution

The fourth proportional to 75,857.35, 113,209.22 and 67,450.01 is: 100,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.35 : 113,209.22 = 67,450.01 : x
  2. Step 2: Convert to fraction form
    75,857.35/113,209.22 = 67,450.01/x
  3. Step 3: Cross multiply
    75,857.35x = 113,209.22 × 67,450.01
  4. Step 4: Simplify right side
    75,857.35x = 7,635,962,683.84
  5. Step 5: Solve for x
    x = 7,635,962,683.84/75,857.35
  6. Step 6: Final answer
    x = 100,662.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.