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Finding the Fourth Proportional to 116,580.94, 160,881.69 and 66,279.94

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Solution

The fourth proportional to 116,580.94, 160,881.69 and 66,279.94 is: 91,466.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,580.94 : 160,881.69 = 66,279.94 : x
  2. Step 2: Convert to fraction form
    116,580.94/160,881.69 = 66,279.94/x
  3. Step 3: Cross multiply
    116,580.94x = 160,881.69 × 66,279.94
  4. Step 4: Simplify right side
    116,580.94x = 10,663,228,606.64
  5. Step 5: Solve for x
    x = 10,663,228,606.64/116,580.94
  6. Step 6: Final answer
    x = 91,466.31

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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.