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Finding the Fourth Proportional to 67,853.88, 93,623.34 and 39,167.48

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Solution

The fourth proportional to 67,853.88, 93,623.34 and 39,167.48 is: 54,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,853.88 : 93,623.34 = 39,167.48 : x
  2. Step 2: Convert to fraction form
    67,853.88/93,623.34 = 39,167.48/x
  3. Step 3: Cross multiply
    67,853.88x = 93,623.34 × 39,167.48
  4. Step 4: Simplify right side
    67,853.88x = 3,666,990,296.98
  5. Step 5: Solve for x
    x = 3,666,990,296.98/67,853.88
  6. Step 6: Final answer
    x = 54,042.46

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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.