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Finding the Fourth Proportional to 572,593.80, 858,987.90 and 173,231.40

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Solution

The fourth proportional to 572,593.80, 858,987.90 and 173,231.40 is: 259,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,593.80 : 858,987.90 = 173,231.40 : x
  2. Step 2: Convert to fraction form
    572,593.80/858,987.90 = 173,231.40/x
  3. Step 3: Cross multiply
    572,593.80x = 858,987.90 × 173,231.40
  4. Step 4: Simplify right side
    572,593.80x = 148,803,676,500.06
  5. Step 5: Solve for x
    x = 148,803,676,500.06/572,593.80
  6. Step 6: Final answer
    x = 259,876.51

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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.