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Finding the Fourth Proportional to 67,661.39, 93,374.25 and 43,829.54

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Solution

The fourth proportional to 67,661.39, 93,374.25 and 43,829.54 is: 60,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.39 : 93,374.25 = 43,829.54 : x
  2. Step 2: Convert to fraction form
    67,661.39/93,374.25 = 43,829.54/x
  3. Step 3: Cross multiply
    67,661.39x = 93,374.25 × 43,829.54
  4. Step 4: Simplify right side
    67,661.39x = 4,092,549,958.47
  5. Step 5: Solve for x
    x = 4,092,549,958.47/67,661.39
  6. Step 6: Final answer
    x = 60,485.76

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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.