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Finding the Fourth Proportional to 180,325.51, 270,512.88 and 75,119.88

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Solution

The fourth proportional to 180,325.51, 270,512.88 and 75,119.88 is: 112,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,325.51 : 270,512.88 = 75,119.88 : x
  2. Step 2: Convert to fraction form
    180,325.51/270,512.88 = 75,119.88/x
  3. Step 3: Cross multiply
    180,325.51x = 270,512.88 × 75,119.88
  4. Step 4: Simplify right side
    180,325.51x = 20,320,895,084.05
  5. Step 5: Solve for x
    x = 20,320,895,084.05/180,325.51
  6. Step 6: Final answer
    x = 112,690.07

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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.