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Finding the Fourth Proportional to 134,958.60, 202,583.70 and 75,909.60

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Solution

The fourth proportional to 134,958.60, 202,583.70 and 75,909.60 is: 113,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,958.60 : 202,583.70 = 75,909.60 : x
  2. Step 2: Convert to fraction form
    134,958.60/202,583.70 = 75,909.60/x
  3. Step 3: Cross multiply
    134,958.60x = 202,583.70 × 75,909.60
  4. Step 4: Simplify right side
    134,958.60x = 15,378,047,633.52
  5. Step 5: Solve for x
    x = 15,378,047,633.52/134,958.60
  6. Step 6: Final answer
    x = 113,946.41

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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.