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Finding the Fourth Proportional to 67,422.99, 93,043.65 and 37,208.31

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Solution

The fourth proportional to 67,422.99, 93,043.65 and 37,208.31 is: 51,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,422.99 : 93,043.65 = 37,208.31 : x
  2. Step 2: Convert to fraction form
    67,422.99/93,043.65 = 37,208.31/x
  3. Step 3: Cross multiply
    67,422.99x = 93,043.65 × 37,208.31
  4. Step 4: Simplify right side
    67,422.99x = 3,461,996,972.73
  5. Step 5: Solve for x
    x = 3,461,996,972.73/67,422.99
  6. Step 6: Final answer
    x = 51,347.43

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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.