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Finding the Fourth Proportional to 230,606.40, 345,974.40 and 112,281.60

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Solution

The fourth proportional to 230,606.40, 345,974.40 and 112,281.60 is: 168,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,606.40 : 345,974.40 = 112,281.60 : x
  2. Step 2: Convert to fraction form
    230,606.40/345,974.40 = 112,281.60/x
  3. Step 3: Cross multiply
    230,606.40x = 345,974.40 × 112,281.60
  4. Step 4: Simplify right side
    230,606.40x = 38,846,559,191.04
  5. Step 5: Solve for x
    x = 38,846,559,191.04/230,606.40
  6. Step 6: Final answer
    x = 168,453.95

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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.