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Finding the Fourth Proportional to 271,716.60, 407,592.90 and 72,034.20

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Solution

The fourth proportional to 271,716.60, 407,592.90 and 72,034.20 is: 108,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,716.60 : 407,592.90 = 72,034.20 : x
  2. Step 2: Convert to fraction form
    271,716.60/407,592.90 = 72,034.20/x
  3. Step 3: Cross multiply
    271,716.60x = 407,592.90 × 72,034.20
  4. Step 4: Simplify right side
    271,716.60x = 29,360,628,477.18
  5. Step 5: Solve for x
    x = 29,360,628,477.18/271,716.60
  6. Step 6: Final answer
    x = 108,056.07

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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.