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Finding the Fourth Proportional to 271,423.98, 406,720.79 and 145,082.22

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Solution

The fourth proportional to 271,423.98, 406,720.79 and 145,082.22 is: 217,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,423.98 : 406,720.79 = 145,082.22 : x
  2. Step 2: Convert to fraction form
    271,423.98/406,720.79 = 145,082.22/x
  3. Step 3: Cross multiply
    271,423.98x = 406,720.79 × 145,082.22
  4. Step 4: Simplify right side
    271,423.98x = 59,007,955,133.35
  5. Step 5: Solve for x
    x = 59,007,955,133.35/271,423.98
  6. Step 6: Final answer
    x = 217,401.41

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1.5x scale

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.