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Finding the Fourth Proportional to 82,879.61, 124,301.79 and 23,699.39

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Solution

The fourth proportional to 82,879.61, 124,301.79 and 23,699.39 is: 35,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,879.61 : 124,301.79 = 23,699.39 : x
  2. Step 2: Convert to fraction form
    82,879.61/124,301.79 = 23,699.39/x
  3. Step 3: Cross multiply
    82,879.61x = 124,301.79 × 23,699.39
  4. Step 4: Simplify right side
    82,879.61x = 2,945,875,977.40
  5. Step 5: Solve for x
    x = 2,945,875,977.40/82,879.61
  6. Step 6: Final answer
    x = 35,544.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.