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Finding the Fourth Proportional to 271,710.60, 407,583.90 and 72,028.20

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Solution

The fourth proportional to 271,710.60, 407,583.90 and 72,028.20 is: 108,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,710.60 : 407,583.90 = 72,028.20 : x
  2. Step 2: Convert to fraction form
    271,710.60/407,583.90 = 72,028.20/x
  3. Step 3: Cross multiply
    271,710.60x = 407,583.90 × 72,028.20
  4. Step 4: Simplify right side
    271,710.60x = 29,357,534,665.98
  5. Step 5: Solve for x
    x = 29,357,534,665.98/271,710.60
  6. Step 6: Final answer
    x = 108,047.07

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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.