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Finding the Fourth Proportional to 230,456.50, 345,684.75 and 55,352.50

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Solution

The fourth proportional to 230,456.50, 345,684.75 and 55,352.50 is: 83,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,456.50 : 345,684.75 = 55,352.50 : x
  2. Step 2: Convert to fraction form
    230,456.50/345,684.75 = 55,352.50/x
  3. Step 3: Cross multiply
    230,456.50x = 345,684.75 × 55,352.50
  4. Step 4: Simplify right side
    230,456.50x = 19,134,515,124.38
  5. Step 5: Solve for x
    x = 19,134,515,124.38/230,456.50
  6. Step 6: Final answer
    x = 83,028.75

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1.5x scale

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.