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Finding the Fourth Proportional to 208,270.62, 312,155.52 and 95,795.82

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Solution

The fourth proportional to 208,270.62, 312,155.52 and 95,795.82 is: 143,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270.62 : 312,155.52 = 95,795.82 : x
  2. Step 2: Convert to fraction form
    208,270.62/312,155.52 = 95,795.82/x
  3. Step 3: Cross multiply
    208,270.62x = 312,155.52 × 95,795.82
  4. Step 4: Simplify right side
    208,270.62x = 29,903,194,005.93
  5. Step 5: Solve for x
    x = 29,903,194,005.93/208,270.62
  6. Step 6: Final answer
    x = 143,578.55

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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.