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Finding the Fourth Proportional to 114,336.67, 171,472.59 and 72,153.56

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Solution

The fourth proportional to 114,336.67, 171,472.59 and 72,153.56 is: 108,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,336.67 : 171,472.59 = 72,153.56 : x
  2. Step 2: Convert to fraction form
    114,336.67/171,472.59 = 72,153.56/x
  3. Step 3: Cross multiply
    114,336.67x = 171,472.59 × 72,153.56
  4. Step 4: Simplify right side
    114,336.67x = 12,372,356,953.56
  5. Step 5: Solve for x
    x = 12,372,356,953.56/114,336.67
  6. Step 6: Final answer
    x = 108,209.88

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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.