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Finding the Fourth Proportional to 58,992.60, 88,343.10 and 39,163.80

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Solution

The fourth proportional to 58,992.60, 88,343.10 and 39,163.80 is: 58,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,992.60 : 88,343.10 = 39,163.80 : x
  2. Step 2: Convert to fraction form
    58,992.60/88,343.10 = 39,163.80/x
  3. Step 3: Cross multiply
    58,992.60x = 88,343.10 × 39,163.80
  4. Step 4: Simplify right side
    58,992.60x = 3,459,851,499.78
  5. Step 5: Solve for x
    x = 3,459,851,499.78/58,992.60
  6. Step 6: Final answer
    x = 58,648.91

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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.