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Finding the Fourth Proportional to 184,428.60, 276,642.90 and 137,772.60

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Solution

The fourth proportional to 184,428.60, 276,642.90 and 137,772.60 is: 206,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,428.60 : 276,642.90 = 137,772.60 : x
  2. Step 2: Convert to fraction form
    184,428.60/276,642.90 = 137,772.60/x
  3. Step 3: Cross multiply
    184,428.60x = 276,642.90 × 137,772.60
  4. Step 4: Simplify right side
    184,428.60x = 38,113,811,604.54
  5. Step 5: Solve for x
    x = 38,113,811,604.54/184,428.60
  6. Step 6: Final answer
    x = 206,658.90

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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.