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Finding the Fourth Proportional to 244,135.80, 366,203.70 and 86,380.20

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Solution

The fourth proportional to 244,135.80, 366,203.70 and 86,380.20 is: 129,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,135.80 : 366,203.70 = 86,380.20 : x
  2. Step 2: Convert to fraction form
    244,135.80/366,203.70 = 86,380.20/x
  3. Step 3: Cross multiply
    244,135.80x = 366,203.70 × 86,380.20
  4. Step 4: Simplify right side
    244,135.80x = 31,632,748,846.74
  5. Step 5: Solve for x
    x = 31,632,748,846.74/244,135.80
  6. Step 6: Final answer
    x = 129,570.30

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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.