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Finding the Fourth Proportional to 404,316.92, 606,411.09 and 134,422.64

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Solution

The fourth proportional to 404,316.92, 606,411.09 and 134,422.64 is: 201,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,316.92 : 606,411.09 = 134,422.64 : x
  2. Step 2: Convert to fraction form
    404,316.92/606,411.09 = 134,422.64/x
  3. Step 3: Cross multiply
    404,316.92x = 606,411.09 × 134,422.64
  4. Step 4: Simplify right side
    404,316.92x = 81,515,377,115.11
  5. Step 5: Solve for x
    x = 81,515,377,115.11/404,316.92
  6. Step 6: Final answer
    x = 201,612.58

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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.