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Finding the Fourth Proportional to 366,903.98, 550,383.30 and 130,215.90

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Solution

The fourth proportional to 366,903.98, 550,383.30 and 130,215.90 is: 195,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,903.98 : 550,383.30 = 130,215.90 : x
  2. Step 2: Convert to fraction form
    366,903.98/550,383.30 = 130,215.90/x
  3. Step 3: Cross multiply
    366,903.98x = 550,383.30 × 130,215.90
  4. Step 4: Simplify right side
    366,903.98x = 71,668,656,754.47
  5. Step 5: Solve for x
    x = 71,668,656,754.47/366,903.98
  6. Step 6: Final answer
    x = 195,333.55

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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.