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Finding the Fourth Proportional to 180,820.80, 271,231.20 and 117,835.20

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Solution

The fourth proportional to 180,820.80, 271,231.20 and 117,835.20 is: 176,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,820.80 : 271,231.20 = 117,835.20 : x
  2. Step 2: Convert to fraction form
    180,820.80/271,231.20 = 117,835.20/x
  3. Step 3: Cross multiply
    180,820.80x = 271,231.20 × 117,835.20
  4. Step 4: Simplify right side
    180,820.80x = 31,960,582,698.24
  5. Step 5: Solve for x
    x = 31,960,582,698.24/180,820.80
  6. Step 6: Final answer
    x = 176,752.80

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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.