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Finding the Fourth Proportional to 114,872.52, 172,425.44 and 72,648.84

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Solution

The fourth proportional to 114,872.52, 172,425.44 and 72,648.84 is: 109,047.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,872.52 : 172,425.44 = 72,648.84 : x
  2. Step 2: Convert to fraction form
    114,872.52/172,425.44 = 72,648.84/x
  3. Step 3: Cross multiply
    114,872.52x = 172,425.44 × 72,648.84
  4. Step 4: Simplify right side
    114,872.52x = 12,526,508,202.49
  5. Step 5: Solve for x
    x = 12,526,508,202.49/114,872.52
  6. Step 6: Final answer
    x = 109,047.04

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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.