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Finding the Fourth Proportional to 132,716.34, 198,916.76 and 92,518.06

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Solution

The fourth proportional to 132,716.34, 198,916.76 and 92,518.06 is: 138,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,716.34 : 198,916.76 = 92,518.06 : x
  2. Step 2: Convert to fraction form
    132,716.34/198,916.76 = 92,518.06/x
  3. Step 3: Cross multiply
    132,716.34x = 198,916.76 × 92,518.06
  4. Step 4: Simplify right side
    132,716.34x = 18,403,392,736.69
  5. Step 5: Solve for x
    x = 18,403,392,736.69/132,716.34
  6. Step 6: Final answer
    x = 138,667.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.