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Finding the Fourth Proportional to 172,595.91, 238,299.39 and 108,091.02

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Solution

The fourth proportional to 172,595.91, 238,299.39 and 108,091.02 is: 149,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,595.91 : 238,299.39 = 108,091.02 : x
  2. Step 2: Convert to fraction form
    172,595.91/238,299.39 = 108,091.02/x
  3. Step 3: Cross multiply
    172,595.91x = 238,299.39 × 108,091.02
  4. Step 4: Simplify right side
    172,595.91x = 25,758,024,130.48
  5. Step 5: Solve for x
    x = 25,758,024,130.48/172,595.91
  6. Step 6: Final answer
    x = 149,238.90

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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.