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Finding the Fourth Proportional to 221,155.44, 331,861.62 and 93,062.28

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Solution

The fourth proportional to 221,155.44, 331,861.62 and 93,062.28 is: 139,647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,155.44 : 331,861.62 = 93,062.28 : x
  2. Step 2: Convert to fraction form
    221,155.44/331,861.62 = 93,062.28/x
  3. Step 3: Cross multiply
    221,155.44x = 331,861.62 × 93,062.28
  4. Step 4: Simplify right side
    221,155.44x = 30,883,799,001.69
  5. Step 5: Solve for x
    x = 30,883,799,001.69/221,155.44
  6. Step 6: Final answer
    x = 139,647.48

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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.