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Finding the Fourth Proportional to 494,310.90, 741,423.15 and 161,886.90

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Solution

The fourth proportional to 494,310.90, 741,423.15 and 161,886.90 is: 242,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,310.90 : 741,423.15 = 161,886.90 : x
  2. Step 2: Convert to fraction form
    494,310.90/741,423.15 = 161,886.90/x
  3. Step 3: Cross multiply
    494,310.90x = 741,423.15 × 161,886.90
  4. Step 4: Simplify right side
    494,310.90x = 120,026,695,341.74
  5. Step 5: Solve for x
    x = 120,026,695,341.74/494,310.90
  6. Step 6: Final answer
    x = 242,816.20

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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.