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Finding the Fourth Proportional to 115,620.50, 159,556.29 and 62,628.50

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Solution

The fourth proportional to 115,620.50, 159,556.29 and 62,628.50 is: 86,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,620.50 : 159,556.29 = 62,628.50 : x
  2. Step 2: Convert to fraction form
    115,620.50/159,556.29 = 62,628.50/x
  3. Step 3: Cross multiply
    115,620.50x = 159,556.29 × 62,628.50
  4. Step 4: Simplify right side
    115,620.50x = 9,992,771,108.27
  5. Step 5: Solve for x
    x = 9,992,771,108.27/115,620.50
  6. Step 6: Final answer
    x = 86,427.33

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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.