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Finding the Fourth Proportional to 208,192.69, 312,242.31 and 95,764.93

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Solution

The fourth proportional to 208,192.69, 312,242.31 and 95,764.93 is: 143,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,192.69 : 312,242.31 = 95,764.93 : x
  2. Step 2: Convert to fraction form
    208,192.69/312,242.31 = 95,764.93/x
  3. Step 3: Cross multiply
    208,192.69x = 312,242.31 × 95,764.93
  4. Step 4: Simplify right side
    208,192.69x = 29,901,861,398.98
  5. Step 5: Solve for x
    x = 29,901,861,398.98/208,192.69
  6. Step 6: Final answer
    x = 143,625.90

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1.5x scale

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.