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Finding the Fourth Proportional to 180,469.88, 270,718.86 and 75,318.92

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Solution

The fourth proportional to 180,469.88, 270,718.86 and 75,318.92 is: 112,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,469.88 : 270,718.86 = 75,318.92 : x
  2. Step 2: Convert to fraction form
    180,469.88/270,718.86 = 75,318.92/x
  3. Step 3: Cross multiply
    180,469.88x = 270,718.86 × 75,318.92
  4. Step 4: Simplify right side
    180,469.88x = 20,390,252,158.83
  5. Step 5: Solve for x
    x = 20,390,252,158.83/180,469.88
  6. Step 6: Final answer
    x = 112,984.24

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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.