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Finding the Fourth Proportional to 45,303.60, 67,890.60 and 33,364.20

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Solution

The fourth proportional to 45,303.60, 67,890.60 and 33,364.20 is: 49,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,303.60 : 67,890.60 = 33,364.20 : x
  2. Step 2: Convert to fraction form
    45,303.60/67,890.60 = 33,364.20/x
  3. Step 3: Cross multiply
    45,303.60x = 67,890.60 × 33,364.20
  4. Step 4: Simplify right side
    45,303.60x = 2,265,115,556.52
  5. Step 5: Solve for x
    x = 2,265,115,556.52/45,303.60
  6. Step 6: Final answer
    x = 49,998.58

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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.