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Finding the Fourth Proportional to 271,812.40, 407,864.40 and 114,056.80

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Solution

The fourth proportional to 271,812.40, 407,864.40 and 114,056.80 is: 171,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,812.40 : 407,864.40 = 114,056.80 : x
  2. Step 2: Convert to fraction form
    271,812.40/407,864.40 = 114,056.80/x
  3. Step 3: Cross multiply
    271,812.40x = 407,864.40 × 114,056.80
  4. Step 4: Simplify right side
    271,812.40x = 46,519,708,297.92
  5. Step 5: Solve for x
    x = 46,519,708,297.92/271,812.40
  6. Step 6: Final answer
    x = 171,146.38

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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.