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Finding the Fourth Proportional to 117,561.85, 176,342.77 and 38,654.89

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Solution

The fourth proportional to 117,561.85, 176,342.77 and 38,654.89 is: 57,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,561.85 : 176,342.77 = 38,654.89 : x
  2. Step 2: Convert to fraction form
    117,561.85/176,342.77 = 38,654.89/x
  3. Step 3: Cross multiply
    117,561.85x = 176,342.77 × 38,654.89
  4. Step 4: Simplify right side
    117,561.85x = 6,816,509,494.93
  5. Step 5: Solve for x
    x = 6,816,509,494.93/117,561.85
  6. Step 6: Final answer
    x = 57,982.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.