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Finding the Fourth Proportional to 67,540.90, 93,218.02 and 39,262.98

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Solution

The fourth proportional to 67,540.90, 93,218.02 and 39,262.98 is: 54,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,540.90 : 93,218.02 = 39,262.98 : x
  2. Step 2: Convert to fraction form
    67,540.90/93,218.02 = 39,262.98/x
  3. Step 3: Cross multiply
    67,540.90x = 93,218.02 × 39,262.98
  4. Step 4: Simplify right side
    67,540.90x = 3,660,017,254.90
  5. Step 5: Solve for x
    x = 3,660,017,254.90/67,540.90
  6. Step 6: Final answer
    x = 54,189.64

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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.