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Finding the Fourth Proportional to 103,273.48, 154,917.62 and 43,241.55

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Solution

The fourth proportional to 103,273.48, 154,917.62 and 43,241.55 is: 64,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,273.48 : 154,917.62 = 43,241.55 : x
  2. Step 2: Convert to fraction form
    103,273.48/154,917.62 = 43,241.55/x
  3. Step 3: Cross multiply
    103,273.48x = 154,917.62 × 43,241.55
  4. Step 4: Simplify right side
    103,273.48x = 6,698,878,011.11
  5. Step 5: Solve for x
    x = 6,698,878,011.11/103,273.48
  6. Step 6: Final answer
    x = 64,865.42

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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.