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Finding the Fourth Proportional to 70,808, 106,204.64 and 44,434.56

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Solution

The fourth proportional to 70,808, 106,204.64 and 44,434.56 is: 66,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808 : 106,204.64 = 44,434.56 : x
  2. Step 2: Convert to fraction form
    70,808/106,204.64 = 44,434.56/x
  3. Step 3: Cross multiply
    70,808x = 106,204.64 × 44,434.56
  4. Step 4: Simplify right side
    70,808x = 4,719,156,448.36
  5. Step 5: Solve for x
    x = 4,719,156,448.36/70,808
  6. Step 6: Final answer
    x = 66,647.22

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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.