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Finding the Fourth Proportional to 226,880.80, 340,515.60 and 100,715.20

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Solution

The fourth proportional to 226,880.80, 340,515.60 and 100,715.20 is: 151,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,880.80 : 340,515.60 = 100,715.20 : x
  2. Step 2: Convert to fraction form
    226,880.80/340,515.60 = 100,715.20/x
  3. Step 3: Cross multiply
    226,880.80x = 340,515.60 × 100,715.20
  4. Step 4: Simplify right side
    226,880.80x = 34,295,096,757.12
  5. Step 5: Solve for x
    x = 34,295,096,757.12/226,880.80
  6. Step 6: Final answer
    x = 151,159.10

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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.