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Finding the Fourth Proportional to 271,572.60, 407,431.80 and 242,193.90

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Solution

The fourth proportional to 271,572.60, 407,431.80 and 242,193.90 is: 363,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,572.60 : 407,431.80 = 242,193.90 : x
  2. Step 2: Convert to fraction form
    271,572.60/407,431.80 = 242,193.90/x
  3. Step 3: Cross multiply
    271,572.60x = 407,431.80 × 242,193.90
  4. Step 4: Simplify right side
    271,572.60x = 98,677,496,626.02
  5. Step 5: Solve for x
    x = 98,677,496,626.02/271,572.60
  6. Step 6: Final answer
    x = 363,355.86

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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.