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Finding the Fourth Proportional to 70,809, 106,206.14 and 44,435.56

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Solution

The fourth proportional to 70,809, 106,206.14 and 44,435.56 is: 66,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809 : 106,206.14 = 44,435.56 : x
  2. Step 2: Convert to fraction form
    70,809/106,206.14 = 44,435.56/x
  3. Step 3: Cross multiply
    70,809x = 106,206.14 × 44,435.56
  4. Step 4: Simplify right side
    70,809x = 4,719,329,306.34
  5. Step 5: Solve for x
    x = 4,719,329,306.34/70,809
  6. Step 6: Final answer
    x = 66,648.72

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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.