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Finding the Fourth Proportional to 172,646.97, 238,289.58 and 116,025.54

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Solution

The fourth proportional to 172,646.97, 238,289.58 and 116,025.54 is: 160,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,646.97 : 238,289.58 = 116,025.54 : x
  2. Step 2: Convert to fraction form
    172,646.97/238,289.58 = 116,025.54/x
  3. Step 3: Cross multiply
    172,646.97x = 238,289.58 × 116,025.54
  4. Step 4: Simplify right side
    172,646.97x = 27,647,677,195.87
  5. Step 5: Solve for x
    x = 27,647,677,195.87/172,646.97
  6. Step 6: Final answer
    x = 160,139.95

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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.