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Finding the Fourth Proportional to 117,662.35, 176,455.60 and 38,757.79

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Solution

The fourth proportional to 117,662.35, 176,455.60 and 38,757.79 is: 58,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,662.35 : 176,455.60 = 38,757.79 : x
  2. Step 2: Convert to fraction form
    117,662.35/176,455.60 = 38,757.79/x
  3. Step 3: Cross multiply
    117,662.35x = 176,455.60 × 38,757.79
  4. Step 4: Simplify right side
    117,662.35x = 6,839,029,089.12
  5. Step 5: Solve for x
    x = 6,839,029,089.12/117,662.35
  6. Step 6: Final answer
    x = 58,124.19

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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.