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Finding the Fourth Proportional to 159,503.74, 219,961.65 and 104,958.34

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Solution

The fourth proportional to 159,503.74, 219,961.65 and 104,958.34 is: 144,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503.74 : 219,961.65 = 104,958.34 : x
  2. Step 2: Convert to fraction form
    159,503.74/219,961.65 = 104,958.34/x
  3. Step 3: Cross multiply
    159,503.74x = 219,961.65 × 104,958.34
  4. Step 4: Simplify right side
    159,503.74x = 23,086,809,647.66
  5. Step 5: Solve for x
    x = 23,086,809,647.66/159,503.74
  6. Step 6: Final answer
    x = 144,741.49

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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.