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Finding the Fourth Proportional to 132,954.72, 183,470.76 and 72,524.87

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Solution

The fourth proportional to 132,954.72, 183,470.76 and 72,524.87 is: 100,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,954.72 : 183,470.76 = 72,524.87 : x
  2. Step 2: Convert to fraction form
    132,954.72/183,470.76 = 72,524.87/x
  3. Step 3: Cross multiply
    132,954.72x = 183,470.76 × 72,524.87
  4. Step 4: Simplify right side
    132,954.72x = 13,306,192,100.45
  5. Step 5: Solve for x
    x = 13,306,192,100.45/132,954.72
  6. Step 6: Final answer
    x = 100,080.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.