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Finding the Fourth Proportional to 238,594.86, 329,269.39 and 136,638.54

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Solution

The fourth proportional to 238,594.86, 329,269.39 and 136,638.54 is: 188,566.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,594.86 : 329,269.39 = 136,638.54 : x
  2. Step 2: Convert to fraction form
    238,594.86/329,269.39 = 136,638.54/x
  3. Step 3: Cross multiply
    238,594.86x = 329,269.39 × 136,638.54
  4. Step 4: Simplify right side
    238,594.86x = 44,990,888,716.29
  5. Step 5: Solve for x
    x = 44,990,888,716.29/238,594.86
  6. Step 6: Final answer
    x = 188,566.04

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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.