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Finding the Fourth Proportional to 124,405.76, 186,600.96 and 50,531.84

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Solution

The fourth proportional to 124,405.76, 186,600.96 and 50,531.84 is: 75,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,405.76 : 186,600.96 = 50,531.84 : x
  2. Step 2: Convert to fraction form
    124,405.76/186,600.96 = 50,531.84/x
  3. Step 3: Cross multiply
    124,405.76x = 186,600.96 × 50,531.84
  4. Step 4: Simplify right side
    124,405.76x = 9,429,289,854.57
  5. Step 5: Solve for x
    x = 9,429,289,854.57/124,405.76
  6. Step 6: Final answer
    x = 75,794.64

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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.