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Finding the Fourth Proportional to 658,105.70, 987,218.80 and 184,787.87

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Solution

The fourth proportional to 658,105.70, 987,218.80 and 184,787.87 is: 277,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,105.70 : 987,218.80 = 184,787.87 : x
  2. Step 2: Convert to fraction form
    658,105.70/987,218.80 = 184,787.87/x
  3. Step 3: Cross multiply
    658,105.70x = 987,218.80 × 184,787.87
  4. Step 4: Simplify right side
    658,105.70x = 182,426,061,282.03
  5. Step 5: Solve for x
    x = 182,426,061,282.03/658,105.70
  6. Step 6: Final answer
    x = 277,198.72

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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.