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Finding the Fourth Proportional to 271,812.20, 407,718.30 and 94,300.70

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Solution

The fourth proportional to 271,812.20, 407,718.30 and 94,300.70 is: 141,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,812.20 : 407,718.30 = 94,300.70 : x
  2. Step 2: Convert to fraction form
    271,812.20/407,718.30 = 94,300.70/x
  3. Step 3: Cross multiply
    271,812.20x = 407,718.30 × 94,300.70
  4. Step 4: Simplify right side
    271,812.20x = 38,448,121,092.81
  5. Step 5: Solve for x
    x = 38,448,121,092.81/271,812.20
  6. Step 6: Final answer
    x = 141,451.05

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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.