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Finding the Fourth Proportional to 230,562.40, 345,908.40 and 112,237.60

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Solution

The fourth proportional to 230,562.40, 345,908.40 and 112,237.60 is: 168,387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,562.40 : 345,908.40 = 112,237.60 : x
  2. Step 2: Convert to fraction form
    230,562.40/345,908.40 = 112,237.60/x
  3. Step 3: Cross multiply
    230,562.40x = 345,908.40 × 112,237.60
  4. Step 4: Simplify right side
    230,562.40x = 38,823,928,635.84
  5. Step 5: Solve for x
    x = 38,823,928,635.84/230,562.40
  6. Step 6: Final answer
    x = 168,387.94

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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.