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Finding the Fourth Proportional to 117,842.60, 176,504.70 and 104,709.80

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Solution

The fourth proportional to 117,842.60, 176,504.70 and 104,709.80 is: 156,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,842.60 : 176,504.70 = 104,709.80 : x
  2. Step 2: Convert to fraction form
    117,842.60/176,504.70 = 104,709.80/x
  3. Step 3: Cross multiply
    117,842.60x = 176,504.70 × 104,709.80
  4. Step 4: Simplify right side
    117,842.60x = 18,481,771,836.06
  5. Step 5: Solve for x
    x = 18,481,771,836.06/117,842.60
  6. Step 6: Final answer
    x = 156,834.39

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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.