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Finding the Fourth Proportional to 116,751.54, 161,125.29 and 66,450.54

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Solution

The fourth proportional to 116,751.54, 161,125.29 and 66,450.54 is: 91,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,751.54 : 161,125.29 = 66,450.54 : x
  2. Step 2: Convert to fraction form
    116,751.54/161,125.29 = 66,450.54/x
  3. Step 3: Cross multiply
    116,751.54x = 161,125.29 × 66,450.54
  4. Step 4: Simplify right side
    116,751.54x = 10,706,862,528.16
  5. Step 5: Solve for x
    x = 10,706,862,528.16/116,751.54
  6. Step 6: Final answer
    x = 91,706.39

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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.