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Finding the Fourth Proportional to 303,325.30, 455,170.20 and 125,813.80

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Solution

The fourth proportional to 303,325.30, 455,170.20 and 125,813.80 is: 188,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,325.30 : 455,170.20 = 125,813.80 : x
  2. Step 2: Convert to fraction form
    303,325.30/455,170.20 = 125,813.80/x
  3. Step 3: Cross multiply
    303,325.30x = 455,170.20 × 125,813.80
  4. Step 4: Simplify right side
    303,325.30x = 57,266,692,508.76
  5. Step 5: Solve for x
    x = 57,266,692,508.76/303,325.30
  6. Step 6: Final answer
    x = 188,796.29

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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.