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Finding the Fourth Proportional to 366,892.35, 550,393.20 and 130,215.21

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Solution

The fourth proportional to 366,892.35, 550,393.20 and 130,215.21 is: 195,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,892.35 : 550,393.20 = 130,215.21 : x
  2. Step 2: Convert to fraction form
    366,892.35/550,393.20 = 130,215.21/x
  3. Step 3: Cross multiply
    366,892.35x = 550,393.20 × 130,215.21
  4. Step 4: Simplify right side
    366,892.35x = 71,669,566,120.57
  5. Step 5: Solve for x
    x = 71,669,566,120.57/366,892.35
  6. Step 6: Final answer
    x = 195,342.22

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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.