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Finding the Fourth Proportional to 71,896.49, 99,224.57 and 43,225.52

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Solution

The fourth proportional to 71,896.49, 99,224.57 and 43,225.52 is: 59,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,896.49 : 99,224.57 = 43,225.52 : x
  2. Step 2: Convert to fraction form
    71,896.49/99,224.57 = 43,225.52/x
  3. Step 3: Cross multiply
    71,896.49x = 99,224.57 × 43,225.52
  4. Step 4: Simplify right side
    71,896.49x = 4,289,033,962.60
  5. Step 5: Solve for x
    x = 4,289,033,962.60/71,896.49
  6. Step 6: Final answer
    x = 59,655.68

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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.