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Finding the Fourth Proportional to 129,494.56, 194,241.84 and 46,446.88

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Solution

The fourth proportional to 129,494.56, 194,241.84 and 46,446.88 is: 69,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,494.56 : 194,241.84 = 46,446.88 : x
  2. Step 2: Convert to fraction form
    129,494.56/194,241.84 = 46,446.88/x
  3. Step 3: Cross multiply
    129,494.56x = 194,241.84 × 46,446.88
  4. Step 4: Simplify right side
    129,494.56x = 9,021,927,433.46
  5. Step 5: Solve for x
    x = 9,021,927,433.46/129,494.56
  6. Step 6: Final answer
    x = 69,670.32

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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.