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Finding the Fourth Proportional to 180,561.60, 270,885.60 and 75,326.40

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Solution

The fourth proportional to 180,561.60, 270,885.60 and 75,326.40 is: 113,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,561.60 : 270,885.60 = 75,326.40 : x
  2. Step 2: Convert to fraction form
    180,561.60/270,885.60 = 75,326.40/x
  3. Step 3: Cross multiply
    180,561.60x = 270,885.60 × 75,326.40
  4. Step 4: Simplify right side
    180,561.60x = 20,404,837,059.84
  5. Step 5: Solve for x
    x = 20,404,837,059.84/180,561.60
  6. Step 6: Final answer
    x = 113,007.62

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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.