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Finding the Fourth Proportional to 74,491.05, 102,798.05 and 43,865.48

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Solution

The fourth proportional to 74,491.05, 102,798.05 and 43,865.48 is: 60,534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,491.05 : 102,798.05 = 43,865.48 : x
  2. Step 2: Convert to fraction form
    74,491.05/102,798.05 = 43,865.48/x
  3. Step 3: Cross multiply
    74,491.05x = 102,798.05 × 43,865.48
  4. Step 4: Simplify right side
    74,491.05x = 4,509,285,073.00
  5. Step 5: Solve for x
    x = 4,509,285,073.00/74,491.05
  6. Step 6: Final answer
    x = 60,534.59

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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.