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Finding the Fourth Proportional to 180,851.40, 271,200.30 and 87,385.80

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Solution

The fourth proportional to 180,851.40, 271,200.30 and 87,385.80 is: 131,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,851.40 : 271,200.30 = 87,385.80 : x
  2. Step 2: Convert to fraction form
    180,851.40/271,200.30 = 87,385.80/x
  3. Step 3: Cross multiply
    180,851.40x = 271,200.30 × 87,385.80
  4. Step 4: Simplify right side
    180,851.40x = 23,699,055,175.74
  5. Step 5: Solve for x
    x = 23,699,055,175.74/180,851.40
  6. Step 6: Final answer
    x = 131,041.59

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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.