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Finding the Fourth Proportional to 341,891.79, 512,844.28 and 105,234.22

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Solution

The fourth proportional to 341,891.79, 512,844.28 and 105,234.22 is: 157,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,891.79 : 512,844.28 = 105,234.22 : x
  2. Step 2: Convert to fraction form
    341,891.79/512,844.28 = 105,234.22/x
  3. Step 3: Cross multiply
    341,891.79x = 512,844.28 × 105,234.22
  4. Step 4: Simplify right side
    341,891.79x = 53,968,767,787.26
  5. Step 5: Solve for x
    x = 53,968,767,787.26/341,891.79
  6. Step 6: Final answer
    x = 157,853.36

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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.