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Finding the Fourth Proportional to 75,429.60, 113,209.20 and 33,374.40

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Solution

The fourth proportional to 75,429.60, 113,209.20 and 33,374.40 is: 50,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,429.60 : 113,209.20 = 33,374.40 : x
  2. Step 2: Convert to fraction form
    75,429.60/113,209.20 = 33,374.40/x
  3. Step 3: Cross multiply
    75,429.60x = 113,209.20 × 33,374.40
  4. Step 4: Simplify right side
    75,429.60x = 3,778,289,124.48
  5. Step 5: Solve for x
    x = 3,778,289,124.48/75,429.60
  6. Step 6: Final answer
    x = 50,090.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.