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Finding the Fourth Proportional to 113,230.40, 169,942.80 and 50,147.60

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Solution

The fourth proportional to 113,230.40, 169,942.80 and 50,147.60 is: 75,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,230.40 : 169,942.80 = 50,147.60 : x
  2. Step 2: Convert to fraction form
    113,230.40/169,942.80 = 50,147.60/x
  3. Step 3: Cross multiply
    113,230.40x = 169,942.80 × 50,147.60
  4. Step 4: Simplify right side
    113,230.40x = 8,522,223,557.28
  5. Step 5: Solve for x
    x = 8,522,223,557.28/113,230.40
  6. Step 6: Final answer
    x = 75,264.45

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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.