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Finding the Fourth Proportional to 67,564.70, 93,240.43 and 39,270.39

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Solution

The fourth proportional to 67,564.70, 93,240.43 and 39,270.39 is: 54,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,564.70 : 93,240.43 = 39,270.39 : x
  2. Step 2: Convert to fraction form
    67,564.70/93,240.43 = 39,270.39/x
  3. Step 3: Cross multiply
    67,564.70x = 93,240.43 × 39,270.39
  4. Step 4: Simplify right side
    67,564.70x = 3,661,587,853.52
  5. Step 5: Solve for x
    x = 3,661,587,853.52/67,564.70
  6. Step 6: Final answer
    x = 54,193.80

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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.