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Finding the Fourth Proportional to 136,657.44, 188,591.94 and 79,292.34

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Solution

The fourth proportional to 136,657.44, 188,591.94 and 79,292.34 is: 109,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,657.44 : 188,591.94 = 79,292.34 : x
  2. Step 2: Convert to fraction form
    136,657.44/188,591.94 = 79,292.34/x
  3. Step 3: Cross multiply
    136,657.44x = 188,591.94 × 79,292.34
  4. Step 4: Simplify right side
    136,657.44x = 14,953,896,227.74
  5. Step 5: Solve for x
    x = 14,953,896,227.74/136,657.44
  6. Step 6: Final answer
    x = 109,426.14

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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.