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Finding the Fourth Proportional to 132,051.94, 198,096.74 and 43,312.39

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Solution

The fourth proportional to 132,051.94, 198,096.74 and 43,312.39 is: 64,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,051.94 : 198,096.74 = 43,312.39 : x
  2. Step 2: Convert to fraction form
    132,051.94/198,096.74 = 43,312.39/x
  3. Step 3: Cross multiply
    132,051.94x = 198,096.74 × 43,312.39
  4. Step 4: Simplify right side
    132,051.94x = 8,580,043,260.61
  5. Step 5: Solve for x
    x = 8,580,043,260.61/132,051.94
  6. Step 6: Final answer
    x = 64,974.76

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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.