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Finding the Fourth Proportional to 75,662.10, 113,529.60 and 53,427.60

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Solution

The fourth proportional to 75,662.10, 113,529.60 and 53,427.60 is: 80,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,662.10 : 113,529.60 = 53,427.60 : x
  2. Step 2: Convert to fraction form
    75,662.10/113,529.60 = 53,427.60/x
  3. Step 3: Cross multiply
    75,662.10x = 113,529.60 × 53,427.60
  4. Step 4: Simplify right side
    75,662.10x = 6,065,614,056.96
  5. Step 5: Solve for x
    x = 6,065,614,056.96/75,662.10
  6. Step 6: Final answer
    x = 80,167.14

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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.