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Finding the Fourth Proportional to 134,434.60, 201,651.90 and 99,442.60

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Solution

The fourth proportional to 134,434.60, 201,651.90 and 99,442.60 is: 149,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,434.60 : 201,651.90 = 99,442.60 : x
  2. Step 2: Convert to fraction form
    134,434.60/201,651.90 = 99,442.60/x
  3. Step 3: Cross multiply
    134,434.60x = 201,651.90 × 99,442.60
  4. Step 4: Simplify right side
    134,434.60x = 20,052,789,230.94
  5. Step 5: Solve for x
    x = 20,052,789,230.94/134,434.60
  6. Step 6: Final answer
    x = 149,163.90

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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.