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Finding the Fourth Proportional to 66,951.59, 100,444.26 and 47,268.59

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Solution

The fourth proportional to 66,951.59, 100,444.26 and 47,268.59 is: 70,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,951.59 : 100,444.26 = 47,268.59 : x
  2. Step 2: Convert to fraction form
    66,951.59/100,444.26 = 47,268.59/x
  3. Step 3: Cross multiply
    66,951.59x = 100,444.26 × 47,268.59
  4. Step 4: Simplify right side
    66,951.59x = 4,747,858,543.79
  5. Step 5: Solve for x
    x = 4,747,858,543.79/66,951.59
  6. Step 6: Final answer
    x = 70,914.80

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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.