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Finding the Fourth Proportional to 117,412.72, 176,188.20 and 43,592.56

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Solution

The fourth proportional to 117,412.72, 176,188.20 and 43,592.56 is: 65,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,412.72 : 176,188.20 = 43,592.56 : x
  2. Step 2: Convert to fraction form
    117,412.72/176,188.20 = 43,592.56/x
  3. Step 3: Cross multiply
    117,412.72x = 176,188.20 × 43,592.56
  4. Step 4: Simplify right side
    117,412.72x = 7,680,494,679.79
  5. Step 5: Solve for x
    x = 7,680,494,679.79/117,412.72
  6. Step 6: Final answer
    x = 65,414.50

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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.