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Finding the Fourth Proportional to 124,591.86, 186,696.44 and 84,558.84

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Solution

The fourth proportional to 124,591.86, 186,696.44 and 84,558.84 is: 126,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,591.86 : 186,696.44 = 84,558.84 : x
  2. Step 2: Convert to fraction form
    124,591.86/186,696.44 = 84,558.84/x
  3. Step 3: Cross multiply
    124,591.86x = 186,696.44 × 84,558.84
  4. Step 4: Simplify right side
    124,591.86x = 15,786,834,398.53
  5. Step 5: Solve for x
    x = 15,786,834,398.53/124,591.86
  6. Step 6: Final answer
    x = 126,708.39

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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.