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Finding the Fourth Proportional to 163,471.68, 245,302.29 and 68,694.39

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Solution

The fourth proportional to 163,471.68, 245,302.29 and 68,694.39 is: 103,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,471.68 : 245,302.29 = 68,694.39 : x
  2. Step 2: Convert to fraction form
    163,471.68/245,302.29 = 68,694.39/x
  3. Step 3: Cross multiply
    163,471.68x = 245,302.29 × 68,694.39
  4. Step 4: Simplify right side
    163,471.68x = 16,850,891,177.15
  5. Step 5: Solve for x
    x = 16,850,891,177.15/163,471.68
  6. Step 6: Final answer
    x = 103,081.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.