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Finding the Fourth Proportional to 128,993.34, 193,475.40 and 44,737.94

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Solution

The fourth proportional to 128,993.34, 193,475.40 and 44,737.94 is: 67,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,993.34 : 193,475.40 = 44,737.94 : x
  2. Step 2: Convert to fraction form
    128,993.34/193,475.40 = 44,737.94/x
  3. Step 3: Cross multiply
    128,993.34x = 193,475.40 × 44,737.94
  4. Step 4: Simplify right side
    128,993.34x = 8,655,690,836.68
  5. Step 5: Solve for x
    x = 8,655,690,836.68/128,993.34
  6. Step 6: Final answer
    x = 67,101.84

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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.