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Finding the Fourth Proportional to 117,069, 161,556.36 and 63,355.14

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Solution

The fourth proportional to 117,069, 161,556.36 and 63,355.14 is: 87,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,069 : 161,556.36 = 63,355.14 : x
  2. Step 2: Convert to fraction form
    117,069/161,556.36 = 63,355.14/x
  3. Step 3: Cross multiply
    117,069x = 161,556.36 × 63,355.14
  4. Step 4: Simplify right side
    117,069x = 10,235,425,805.69
  5. Step 5: Solve for x
    x = 10,235,425,805.69/117,069
  6. Step 6: Final answer
    x = 87,430.71

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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.