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Finding the Fourth Proportional to 104,478.45, 144,241.79 and 63,657.97

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Solution

The fourth proportional to 104,478.45, 144,241.79 and 63,657.97 is: 87,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,478.45 : 144,241.79 = 63,657.97 : x
  2. Step 2: Convert to fraction form
    104,478.45/144,241.79 = 63,657.97/x
  3. Step 3: Cross multiply
    104,478.45x = 144,241.79 × 63,657.97
  4. Step 4: Simplify right side
    104,478.45x = 9,182,139,540.57
  5. Step 5: Solve for x
    x = 9,182,139,540.57/104,478.45
  6. Step 6: Final answer
    x = 87,885.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.