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Finding the Fourth Proportional to 119,580.72, 165,084.72 and 92,662.80

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Solution

The fourth proportional to 119,580.72, 165,084.72 and 92,662.80 is: 127,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,580.72 : 165,084.72 = 92,662.80 : x
  2. Step 2: Convert to fraction form
    119,580.72/165,084.72 = 92,662.80/x
  3. Step 3: Cross multiply
    119,580.72x = 165,084.72 × 92,662.80
  4. Step 4: Simplify right side
    119,580.72x = 15,297,212,392.42
  5. Step 5: Solve for x
    x = 15,297,212,392.42/119,580.72
  6. Step 6: Final answer
    x = 127,923.74

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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.