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Finding the Fourth Proportional to 172,936.28, 238,652.46 and 97,484.78

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Solution

The fourth proportional to 172,936.28, 238,652.46 and 97,484.78 is: 134,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.28 : 238,652.46 = 97,484.78 : x
  2. Step 2: Convert to fraction form
    172,936.28/238,652.46 = 97,484.78/x
  3. Step 3: Cross multiply
    172,936.28x = 238,652.46 × 97,484.78
  4. Step 4: Simplify right side
    172,936.28x = 23,264,982,559.56
  5. Step 5: Solve for x
    x = 23,264,982,559.56/172,936.28
  6. Step 6: Final answer
    x = 134,529.22

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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.