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Finding the Fourth Proportional to 108,208.80, 162,203.85 and 49,086.90

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Solution

The fourth proportional to 108,208.80, 162,203.85 and 49,086.90 is: 73,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,208.80 : 162,203.85 = 49,086.90 : x
  2. Step 2: Convert to fraction form
    108,208.80/162,203.85 = 49,086.90/x
  3. Step 3: Cross multiply
    108,208.80x = 162,203.85 × 49,086.90
  4. Step 4: Simplify right side
    108,208.80x = 7,962,084,164.57
  5. Step 5: Solve for x
    x = 7,962,084,164.57/108,208.80
  6. Step 6: Final answer
    x = 73,580.75

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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.