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Finding the Fourth Proportional to 116,465.70, 160,676 and 73,431.04

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Solution

The fourth proportional to 116,465.70, 160,676 and 73,431.04 is: 101,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,465.70 : 160,676 = 73,431.04 : x
  2. Step 2: Convert to fraction form
    116,465.70/160,676 = 73,431.04/x
  3. Step 3: Cross multiply
    116,465.70x = 160,676 × 73,431.04
  4. Step 4: Simplify right side
    116,465.70x = 11,798,605,783.04
  5. Step 5: Solve for x
    x = 11,798,605,783.04/116,465.70
  6. Step 6: Final answer
    x = 101,305.41

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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.