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Finding the Fourth Proportional to 298,809.32, 412,356.86 and 164,673.32

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Solution

The fourth proportional to 298,809.32, 412,356.86 and 164,673.32 is: 227,249.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,809.32 : 412,356.86 = 164,673.32 : x
  2. Step 2: Convert to fraction form
    298,809.32/412,356.86 = 164,673.32/x
  3. Step 3: Cross multiply
    298,809.32x = 412,356.86 × 164,673.32
  4. Step 4: Simplify right side
    298,809.32x = 67,904,173,160.98
  5. Step 5: Solve for x
    x = 67,904,173,160.98/298,809.32
  6. Step 6: Final answer
    x = 227,249.18

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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.