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Finding the Fourth Proportional to 441,806.67, 662,696.82 and 121,978.07

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Solution

The fourth proportional to 441,806.67, 662,696.82 and 121,978.07 is: 182,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,806.67 : 662,696.82 = 121,978.07 : x
  2. Step 2: Convert to fraction form
    441,806.67/662,696.82 = 121,978.07/x
  3. Step 3: Cross multiply
    441,806.67x = 662,696.82 × 121,978.07
  4. Step 4: Simplify right side
    441,806.67x = 80,834,475,785.25
  5. Step 5: Solve for x
    x = 80,834,475,785.25/441,806.67
  6. Step 6: Final answer
    x = 182,963.46

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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.