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Finding the Fourth Proportional to 131,544.86, 197,255.94 and 68,347.98

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Solution

The fourth proportional to 131,544.86, 197,255.94 and 68,347.98 is: 102,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,544.86 : 197,255.94 = 68,347.98 : x
  2. Step 2: Convert to fraction form
    131,544.86/197,255.94 = 68,347.98/x
  3. Step 3: Cross multiply
    131,544.86x = 197,255.94 × 68,347.98
  4. Step 4: Simplify right side
    131,544.86x = 13,482,045,042.00
  5. Step 5: Solve for x
    x = 13,482,045,042.00/131,544.86
  6. Step 6: Final answer
    x = 102,490.09

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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.