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Finding the Fourth Proportional to 329,422, 494,089.32 and 92,783.28

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Solution

The fourth proportional to 329,422, 494,089.32 and 92,783.28 is: 139,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,422 : 494,089.32 = 92,783.28 : x
  2. Step 2: Convert to fraction form
    329,422/494,089.32 = 92,783.28/x
  3. Step 3: Cross multiply
    329,422x = 494,089.32 × 92,783.28
  4. Step 4: Simplify right side
    329,422x = 45,843,227,722.57
  5. Step 5: Solve for x
    x = 45,843,227,722.57/329,422
  6. Step 6: Final answer
    x = 139,162.62

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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.