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Finding the Fourth Proportional to 373,960.20, 561,134.70 and 163,619.40

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Solution

The fourth proportional to 373,960.20, 561,134.70 and 163,619.40 is: 245,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,960.20 : 561,134.70 = 163,619.40 : x
  2. Step 2: Convert to fraction form
    373,960.20/561,134.70 = 163,619.40/x
  3. Step 3: Cross multiply
    373,960.20x = 561,134.70 × 163,619.40
  4. Step 4: Simplify right side
    373,960.20x = 91,812,522,933.18
  5. Step 5: Solve for x
    x = 91,812,522,933.18/373,960.20
  6. Step 6: Final answer
    x = 245,514.16

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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.