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Finding the Fourth Proportional to 116,606.88, 160,902.72 and 66,306.96

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Solution

The fourth proportional to 116,606.88, 160,902.72 and 66,306.96 is: 91,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,606.88 : 160,902.72 = 66,306.96 : x
  2. Step 2: Convert to fraction form
    116,606.88/160,902.72 = 66,306.96/x
  3. Step 3: Cross multiply
    116,606.88x = 160,902.72 × 66,306.96
  4. Step 4: Simplify right side
    116,606.88x = 10,668,970,218.93
  5. Step 5: Solve for x
    x = 10,668,970,218.93/116,606.88
  6. Step 6: Final answer
    x = 91,495.20

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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.