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Finding the Fourth Proportional to 60,546, 90,819.39 and 21,103.86

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Solution

The fourth proportional to 60,546, 90,819.39 and 21,103.86 is: 31,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,546 : 90,819.39 = 21,103.86 : x
  2. Step 2: Convert to fraction form
    60,546/90,819.39 = 21,103.86/x
  3. Step 3: Cross multiply
    60,546x = 90,819.39 × 21,103.86
  4. Step 4: Simplify right side
    60,546x = 1,916,639,691.85
  5. Step 5: Solve for x
    x = 1,916,639,691.85/60,546
  6. Step 6: Final answer
    x = 31,655.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.