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Finding the Fourth Proportional to 172,956.96, 238,669.20 and 97,503.84

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Solution

The fourth proportional to 172,956.96, 238,669.20 and 97,503.84 is: 134,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.96 : 238,669.20 = 97,503.84 : x
  2. Step 2: Convert to fraction form
    172,956.96/238,669.20 = 97,503.84/x
  3. Step 3: Cross multiply
    172,956.96x = 238,669.20 × 97,503.84
  4. Step 4: Simplify right side
    172,956.96x = 23,271,163,489.73
  5. Step 5: Solve for x
    x = 23,271,163,489.73/172,956.96
  6. Step 6: Final answer
    x = 134,548.87

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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.