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Finding the Fourth Proportional to 181,515.80, 271,884.90 and 118,530.20

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Solution

The fourth proportional to 181,515.80, 271,884.90 and 118,530.20 is: 177,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,515.80 : 271,884.90 = 118,530.20 : x
  2. Step 2: Convert to fraction form
    181,515.80/271,884.90 = 118,530.20/x
  3. Step 3: Cross multiply
    181,515.80x = 271,884.90 × 118,530.20
  4. Step 4: Simplify right side
    181,515.80x = 32,226,571,573.98
  5. Step 5: Solve for x
    x = 32,226,571,573.98/181,515.80
  6. Step 6: Final answer
    x = 177,541.41

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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.