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Finding the Fourth Proportional to 103,477.77, 155,086.86 and 44,243.91

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Solution

The fourth proportional to 103,477.77, 155,086.86 and 44,243.91 is: 66,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,477.77 : 155,086.86 = 44,243.91 : x
  2. Step 2: Convert to fraction form
    103,477.77/155,086.86 = 44,243.91/x
  3. Step 3: Cross multiply
    103,477.77x = 155,086.86 × 44,243.91
  4. Step 4: Simplify right side
    103,477.77x = 6,861,648,688.31
  5. Step 5: Solve for x
    x = 6,861,648,688.31/103,477.77
  6. Step 6: Final answer
    x = 66,310.37

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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.