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Finding the Fourth Proportional to 180,967.80, 271,320.48 and 121,656.36

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Solution

The fourth proportional to 180,967.80, 271,320.48 and 121,656.36 is: 182,396.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,967.80 : 271,320.48 = 121,656.36 : x
  2. Step 2: Convert to fraction form
    180,967.80/271,320.48 = 121,656.36/x
  3. Step 3: Cross multiply
    180,967.80x = 271,320.48 × 121,656.36
  4. Step 4: Simplify right side
    180,967.80x = 33,007,861,990.25
  5. Step 5: Solve for x
    x = 33,007,861,990.25/180,967.80
  6. Step 6: Final answer
    x = 182,396.33

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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.