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Finding the Fourth Proportional to 117,063.86, 175,588.54 and 72,093.78

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Solution

The fourth proportional to 117,063.86, 175,588.54 and 72,093.78 is: 108,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,063.86 : 175,588.54 = 72,093.78 : x
  2. Step 2: Convert to fraction form
    117,063.86/175,588.54 = 72,093.78/x
  3. Step 3: Cross multiply
    117,063.86x = 175,588.54 × 72,093.78
  4. Step 4: Simplify right side
    117,063.86x = 12,658,840,334.87
  5. Step 5: Solve for x
    x = 12,658,840,334.87/117,063.86
  6. Step 6: Final answer
    x = 108,136.19

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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.