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Finding the Fourth Proportional to 61,668.69, 85,102.78 and 33,374.37

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Solution

The fourth proportional to 61,668.69, 85,102.78 and 33,374.37 is: 46,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,668.69 : 85,102.78 = 33,374.37 : x
  2. Step 2: Convert to fraction form
    61,668.69/85,102.78 = 33,374.37/x
  3. Step 3: Cross multiply
    61,668.69x = 85,102.78 × 33,374.37
  4. Step 4: Simplify right side
    61,668.69x = 2,840,251,667.75
  5. Step 5: Solve for x
    x = 2,840,251,667.75/61,668.69
  6. Step 6: Final answer
    x = 46,056.62

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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.