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Finding the Fourth Proportional to 172,694.45, 238,318.08 and 97,243.49

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Solution

The fourth proportional to 172,694.45, 238,318.08 and 97,243.49 is: 134,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,694.45 : 238,318.08 = 97,243.49 : x
  2. Step 2: Convert to fraction form
    172,694.45/238,318.08 = 97,243.49/x
  3. Step 3: Cross multiply
    172,694.45x = 238,318.08 × 97,243.49
  4. Step 4: Simplify right side
    172,694.45x = 23,174,881,829.30
  5. Step 5: Solve for x
    x = 23,174,881,829.30/172,694.45
  6. Step 6: Final answer
    x = 134,195.87

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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.