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Finding the Fourth Proportional to 184,443.60, 276,665.40 and 137,787.60

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Solution

The fourth proportional to 184,443.60, 276,665.40 and 137,787.60 is: 206,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,443.60 : 276,665.40 = 137,787.60 : x
  2. Step 2: Convert to fraction form
    184,443.60/276,665.40 = 137,787.60/x
  3. Step 3: Cross multiply
    184,443.60x = 276,665.40 × 137,787.60
  4. Step 4: Simplify right side
    184,443.60x = 38,121,061,469.04
  5. Step 5: Solve for x
    x = 38,121,061,469.04/184,443.60
  6. Step 6: Final answer
    x = 206,681.40

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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.