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Finding the Fourth Proportional to 404,817.66, 607,436.61 and 165,107.41

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Solution

The fourth proportional to 404,817.66, 607,436.61 and 165,107.41 is: 247,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,817.66 : 607,436.61 = 165,107.41 : x
  2. Step 2: Convert to fraction form
    404,817.66/607,436.61 = 165,107.41/x
  3. Step 3: Cross multiply
    404,817.66x = 607,436.61 × 165,107.41
  4. Step 4: Simplify right side
    404,817.66x = 100,292,285,416.28
  5. Step 5: Solve for x
    x = 100,292,285,416.28/404,817.66
  6. Step 6: Final answer
    x = 247,746.81

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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.