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Finding the Fourth Proportional to 180,042.80, 270,064.20 and 113,266.40

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Solution

The fourth proportional to 180,042.80, 270,064.20 and 113,266.40 is: 169,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,042.80 : 270,064.20 = 113,266.40 : x
  2. Step 2: Convert to fraction form
    180,042.80/270,064.20 = 113,266.40/x
  3. Step 3: Cross multiply
    180,042.80x = 270,064.20 × 113,266.40
  4. Step 4: Simplify right side
    180,042.80x = 30,589,199,702.88
  5. Step 5: Solve for x
    x = 30,589,199,702.88/180,042.80
  6. Step 6: Final answer
    x = 169,899.60

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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.