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Finding the Fourth Proportional to 104,635.68, 144,318.72 and 73,996

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Solution

The fourth proportional to 104,635.68, 144,318.72 and 73,996 is: 102,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,635.68 : 144,318.72 = 73,996 : x
  2. Step 2: Convert to fraction form
    104,635.68/144,318.72 = 73,996/x
  3. Step 3: Cross multiply
    104,635.68x = 144,318.72 × 73,996
  4. Step 4: Simplify right side
    104,635.68x = 10,679,008,005.12
  5. Step 5: Solve for x
    x = 10,679,008,005.12/104,635.68
  6. Step 6: Final answer
    x = 102,058.95

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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.