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Finding the Fourth Proportional to 76,361.88, 105,338.72 and 44,519.16

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Solution

The fourth proportional to 76,361.88, 105,338.72 and 44,519.16 is: 61,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,361.88 : 105,338.72 = 44,519.16 : x
  2. Step 2: Convert to fraction form
    76,361.88/105,338.72 = 44,519.16/x
  3. Step 3: Cross multiply
    76,361.88x = 105,338.72 × 44,519.16
  4. Step 4: Simplify right side
    76,361.88x = 4,689,591,329.88
  5. Step 5: Solve for x
    x = 4,689,591,329.88/76,361.88
  6. Step 6: Final answer
    x = 61,412.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.