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Finding the Fourth Proportional to 510,520.93, 765,872.60 and 173,543.88

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Solution

The fourth proportional to 510,520.93, 765,872.60 and 173,543.88 is: 260,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,520.93 : 765,872.60 = 173,543.88 : x
  2. Step 2: Convert to fraction form
    510,520.93/765,872.60 = 173,543.88/x
  3. Step 3: Cross multiply
    510,520.93x = 765,872.60 × 173,543.88
  4. Step 4: Simplify right side
    510,520.93x = 132,912,502,589.69
  5. Step 5: Solve for x
    x = 132,912,502,589.69/510,520.93
  6. Step 6: Final answer
    x = 260,346.82

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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.