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Finding the Fourth Proportional to 132,989.88, 199,428.18 and 44,219.64

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Solution

The fourth proportional to 132,989.88, 199,428.18 and 44,219.64 is: 66,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,989.88 : 199,428.18 = 44,219.64 : x
  2. Step 2: Convert to fraction form
    132,989.88/199,428.18 = 44,219.64/x
  3. Step 3: Cross multiply
    132,989.88x = 199,428.18 × 44,219.64
  4. Step 4: Simplify right side
    132,989.88x = 8,818,642,325.46
  5. Step 5: Solve for x
    x = 8,818,642,325.46/132,989.88
  6. Step 6: Final answer
    x = 66,310.63

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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.