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Finding the Fourth Proportional to 132,990.88, 199,484.39 and 61,873.74

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Solution

The fourth proportional to 132,990.88, 199,484.39 and 61,873.74 is: 92,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,990.88 : 199,484.39 = 61,873.74 : x
  2. Step 2: Convert to fraction form
    132,990.88/199,484.39 = 61,873.74/x
  3. Step 3: Cross multiply
    132,990.88x = 199,484.39 × 61,873.74
  4. Step 4: Simplify right side
    132,990.88x = 12,342,845,443.09
  5. Step 5: Solve for x
    x = 12,342,845,443.09/132,990.88
  6. Step 6: Final answer
    x = 92,809.71

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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.