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Finding the Fourth Proportional to 132,488.96, 198,274.17 and 126,977.72

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Solution

The fourth proportional to 132,488.96, 198,274.17 and 126,977.72 is: 190,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,488.96 : 198,274.17 = 126,977.72 : x
  2. Step 2: Convert to fraction form
    132,488.96/198,274.17 = 126,977.72/x
  3. Step 3: Cross multiply
    132,488.96x = 198,274.17 × 126,977.72
  4. Step 4: Simplify right side
    132,488.96x = 25,176,402,041.49
  5. Step 5: Solve for x
    x = 25,176,402,041.49/132,488.96
  6. Step 6: Final answer
    x = 190,026.41

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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.