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Finding the Fourth Proportional to 351,849.44, 527,774.52 and 85,609.94

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Solution

The fourth proportional to 351,849.44, 527,774.52 and 85,609.94 is: 128,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,849.44 : 527,774.52 = 85,609.94 : x
  2. Step 2: Convert to fraction form
    351,849.44/527,774.52 = 85,609.94/x
  3. Step 3: Cross multiply
    351,849.44x = 527,774.52 × 85,609.94
  4. Step 4: Simplify right side
    351,849.44x = 45,182,744,990.73
  5. Step 5: Solve for x
    x = 45,182,744,990.73/351,849.44
  6. Step 6: Final answer
    x = 128,415.00

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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.