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Finding the Fourth Proportional to 180,819.90, 270,970.65 and 133,062.30

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Solution

The fourth proportional to 180,819.90, 270,970.65 and 133,062.30 is: 199,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,819.90 : 270,970.65 = 133,062.30 : x
  2. Step 2: Convert to fraction form
    180,819.90/270,970.65 = 133,062.30/x
  3. Step 3: Cross multiply
    180,819.90x = 270,970.65 × 133,062.30
  4. Step 4: Simplify right side
    180,819.90x = 36,055,977,921.50
  5. Step 5: Solve for x
    x = 36,055,977,921.50/180,819.90
  6. Step 6: Final answer
    x = 199,402.71

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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.