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Finding the Fourth Proportional to 169,371, 233,729.28 and 92,891.88

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Solution

The fourth proportional to 169,371, 233,729.28 and 92,891.88 is: 128,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,371 : 233,729.28 = 92,891.88 : x
  2. Step 2: Convert to fraction form
    169,371/233,729.28 = 92,891.88/x
  3. Step 3: Cross multiply
    169,371x = 233,729.28 × 92,891.88
  4. Step 4: Simplify right side
    169,371x = 21,711,552,230.25
  5. Step 5: Solve for x
    x = 21,711,552,230.25/169,371
  6. Step 6: Final answer
    x = 128,189.31

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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.