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Finding the Fourth Proportional to 83,651.60, 125,574.60 and 50,409.20

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Solution

The fourth proportional to 83,651.60, 125,574.60 and 50,409.20 is: 75,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,651.60 : 125,574.60 = 50,409.20 : x
  2. Step 2: Convert to fraction form
    83,651.60/125,574.60 = 50,409.20/x
  3. Step 3: Cross multiply
    83,651.60x = 125,574.60 × 50,409.20
  4. Step 4: Simplify right side
    83,651.60x = 6,330,115,126.32
  5. Step 5: Solve for x
    x = 6,330,115,126.32/83,651.60
  6. Step 6: Final answer
    x = 75,672.37

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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.