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Finding the Fourth Proportional to 63,406.80, 95,074.58 and 43,438.84

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Solution

The fourth proportional to 63,406.80, 95,074.58 and 43,438.84 is: 65,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,406.80 : 95,074.58 = 43,438.84 : x
  2. Step 2: Convert to fraction form
    63,406.80/95,074.58 = 43,438.84/x
  3. Step 3: Cross multiply
    63,406.80x = 95,074.58 × 43,438.84
  4. Step 4: Simplify right side
    63,406.80x = 4,129,929,339.60
  5. Step 5: Solve for x
    x = 4,129,929,339.60/63,406.80
  6. Step 6: Final answer
    x = 65,133.86

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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.