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Finding the Fourth Proportional to 180,607.20, 270,910.80 and 117,621.60

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Solution

The fourth proportional to 180,607.20, 270,910.80 and 117,621.60 is: 176,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,607.20 : 270,910.80 = 117,621.60 : x
  2. Step 2: Convert to fraction form
    180,607.20/270,910.80 = 117,621.60/x
  3. Step 3: Cross multiply
    180,607.20x = 270,910.80 × 117,621.60
  4. Step 4: Simplify right side
    180,607.20x = 31,864,961,753.28
  5. Step 5: Solve for x
    x = 31,864,961,753.28/180,607.20
  6. Step 6: Final answer
    x = 176,432.40

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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.