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Finding the Fourth Proportional to 341,763.90, 512,654.22 and 105,108.36

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Solution

The fourth proportional to 341,763.90, 512,654.22 and 105,108.36 is: 157,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,763.90 : 512,654.22 = 105,108.36 : x
  2. Step 2: Convert to fraction form
    341,763.90/512,654.22 = 105,108.36/x
  3. Step 3: Cross multiply
    341,763.90x = 512,654.22 × 105,108.36
  4. Step 4: Simplify right side
    341,763.90x = 53,884,244,311.28
  5. Step 5: Solve for x
    x = 53,884,244,311.28/341,763.90
  6. Step 6: Final answer
    x = 157,665.11

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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.