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Finding the Fourth Proportional to 180,325.01, 270,512.13 and 75,119.38

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Solution

The fourth proportional to 180,325.01, 270,512.13 and 75,119.38 is: 112,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,325.01 : 270,512.13 = 75,119.38 : x
  2. Step 2: Convert to fraction form
    180,325.01/270,512.13 = 75,119.38/x
  3. Step 3: Cross multiply
    180,325.01x = 270,512.13 × 75,119.38
  4. Step 4: Simplify right side
    180,325.01x = 20,320,702,135.52
  5. Step 5: Solve for x
    x = 20,320,702,135.52/180,325.01
  6. Step 6: Final answer
    x = 112,689.32

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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.