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Finding the Fourth Proportional to 132,666.76, 198,791.70 and 92,646.28

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Solution

The fourth proportional to 132,666.76, 198,791.70 and 92,646.28 is: 138,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,666.76 : 198,791.70 = 92,646.28 : x
  2. Step 2: Convert to fraction form
    132,666.76/198,791.70 = 92,646.28/x
  3. Step 3: Cross multiply
    132,666.76x = 198,791.70 × 92,646.28
  4. Step 4: Simplify right side
    132,666.76x = 18,417,311,499.88
  5. Step 5: Solve for x
    x = 18,417,311,499.88/132,666.76
  6. Step 6: Final answer
    x = 138,823.86

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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.