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Finding the Fourth Proportional to 371,731.72, 557,782.84 and 147,253.96

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Solution

The fourth proportional to 371,731.72, 557,782.84 and 147,253.96 is: 220,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,731.72 : 557,782.84 = 147,253.96 : x
  2. Step 2: Convert to fraction form
    371,731.72/557,782.84 = 147,253.96/x
  3. Step 3: Cross multiply
    371,731.72x = 557,782.84 × 147,253.96
  4. Step 4: Simplify right side
    371,731.72x = 82,135,732,010.05
  5. Step 5: Solve for x
    x = 82,135,732,010.05/371,731.72
  6. Step 6: Final answer
    x = 220,954.33

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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.