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Finding the Fourth Proportional to 124,566.76, 186,919.26 and 50,689

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Solution

The fourth proportional to 124,566.76, 186,919.26 and 50,689 is: 76,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,566.76 : 186,919.26 = 50,689 : x
  2. Step 2: Convert to fraction form
    124,566.76/186,919.26 = 50,689/x
  3. Step 3: Cross multiply
    124,566.76x = 186,919.26 × 50,689
  4. Step 4: Simplify right side
    124,566.76x = 9,474,750,370.14
  5. Step 5: Solve for x
    x = 9,474,750,370.14/124,566.76
  6. Step 6: Final answer
    x = 76,061.63

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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.