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Finding the Fourth Proportional to 116,763.54, 161,141.88 and 66,462.54

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Solution

The fourth proportional to 116,763.54, 161,141.88 and 66,462.54 is: 91,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,763.54 : 161,141.88 = 66,462.54 : x
  2. Step 2: Convert to fraction form
    116,763.54/161,141.88 = 66,462.54/x
  3. Step 3: Cross multiply
    116,763.54x = 161,141.88 × 66,462.54
  4. Step 4: Simplify right side
    116,763.54x = 10,709,898,645.18
  5. Step 5: Solve for x
    x = 10,709,898,645.18/116,763.54
  6. Step 6: Final answer
    x = 91,722.97

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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.