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Finding the Fourth Proportional to 172,593.88, 258,953.16 and 60,290.68

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Solution

The fourth proportional to 172,593.88, 258,953.16 and 60,290.68 is: 90,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,593.88 : 258,953.16 = 60,290.68 : x
  2. Step 2: Convert to fraction form
    172,593.88/258,953.16 = 60,290.68/x
  3. Step 3: Cross multiply
    172,593.88x = 258,953.16 × 60,290.68
  4. Step 4: Simplify right side
    172,593.88x = 15,612,462,104.55
  5. Step 5: Solve for x
    x = 15,612,462,104.55/172,593.88
  6. Step 6: Final answer
    x = 90,457.80

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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.