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Finding the Fourth Proportional to 104,998.56, 144,897.66 and 57,251.79

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Solution

The fourth proportional to 104,998.56, 144,897.66 and 57,251.79 is: 79,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,998.56 : 144,897.66 = 57,251.79 : x
  2. Step 2: Convert to fraction form
    104,998.56/144,897.66 = 57,251.79/x
  3. Step 3: Cross multiply
    104,998.56x = 144,897.66 × 57,251.79
  4. Step 4: Simplify right side
    104,998.56x = 8,295,650,401.81
  5. Step 5: Solve for x
    x = 8,295,650,401.81/104,998.56
  6. Step 6: Final answer
    x = 79,007.28

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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.