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Finding the Fourth Proportional to 192,639, 265,841.82 and 125,571

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Solution

The fourth proportional to 192,639, 265,841.82 and 125,571 is: 173,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,639 : 265,841.82 = 125,571 : x
  2. Step 2: Convert to fraction form
    192,639/265,841.82 = 125,571/x
  3. Step 3: Cross multiply
    192,639x = 265,841.82 × 125,571
  4. Step 4: Simplify right side
    192,639x = 33,382,023,179.22
  5. Step 5: Solve for x
    x = 33,382,023,179.22/192,639
  6. Step 6: Final answer
    x = 173,287.98

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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.