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Finding the Fourth Proportional to 113,367.60, 169,939.80 and 63,471.60

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Solution

The fourth proportional to 113,367.60, 169,939.80 and 63,471.60 is: 95,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,367.60 : 169,939.80 = 63,471.60 : x
  2. Step 2: Convert to fraction form
    113,367.60/169,939.80 = 63,471.60/x
  3. Step 3: Cross multiply
    113,367.60x = 169,939.80 × 63,471.60
  4. Step 4: Simplify right side
    113,367.60x = 10,786,351,009.68
  5. Step 5: Solve for x
    x = 10,786,351,009.68/113,367.60
  6. Step 6: Final answer
    x = 95,144.92

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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.