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Finding the Fourth Proportional to 133,043.40, 199,629.90 and 101,442.60

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Solution

The fourth proportional to 133,043.40, 199,629.90 and 101,442.60 is: 152,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,043.40 : 199,629.90 = 101,442.60 : x
  2. Step 2: Convert to fraction form
    133,043.40/199,629.90 = 101,442.60/x
  3. Step 3: Cross multiply
    133,043.40x = 199,629.90 × 101,442.60
  4. Step 4: Simplify right side
    133,043.40x = 20,250,976,093.74
  5. Step 5: Solve for x
    x = 20,250,976,093.74/133,043.40
  6. Step 6: Final answer
    x = 152,213.31

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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.