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Finding the Fourth Proportional to 379,257.16, 568,918.86 and 98,773.96

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Solution

The fourth proportional to 379,257.16, 568,918.86 and 98,773.96 is: 148,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,257.16 : 568,918.86 = 98,773.96 : x
  2. Step 2: Convert to fraction form
    379,257.16/568,918.86 = 98,773.96/x
  3. Step 3: Cross multiply
    379,257.16x = 568,918.86 × 98,773.96
  4. Step 4: Simplify right side
    379,257.16x = 56,194,368,720.89
  5. Step 5: Solve for x
    x = 56,194,368,720.89/379,257.16
  6. Step 6: Final answer
    x = 148,169.57

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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.