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Finding the Fourth Proportional to 58,975.49, 81,372.80 and 49,453.81

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Solution

The fourth proportional to 58,975.49, 81,372.80 and 49,453.81 is: 68,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,975.49 : 81,372.80 = 49,453.81 : x
  2. Step 2: Convert to fraction form
    58,975.49/81,372.80 = 49,453.81/x
  3. Step 3: Cross multiply
    58,975.49x = 81,372.80 × 49,453.81
  4. Step 4: Simplify right side
    58,975.49x = 4,024,194,910.57
  5. Step 5: Solve for x
    x = 4,024,194,910.57/58,975.49
  6. Step 6: Final answer
    x = 68,235.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.