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Finding the Fourth Proportional to 423,696.48, 635,563.97 and 120,112.35

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Solution

The fourth proportional to 423,696.48, 635,563.97 and 120,112.35 is: 180,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,696.48 : 635,563.97 = 120,112.35 : x
  2. Step 2: Convert to fraction form
    423,696.48/635,563.97 = 120,112.35/x
  3. Step 3: Cross multiply
    423,696.48x = 635,563.97 × 120,112.35
  4. Step 4: Simplify right side
    423,696.48x = 76,339,081,411.47
  5. Step 5: Solve for x
    x = 76,339,081,411.47/423,696.48
  6. Step 6: Final answer
    x = 180,173.98

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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.