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Finding the Fourth Proportional to 117,866.05, 176,781.79 and 38,981.41

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Solution

The fourth proportional to 117,866.05, 176,781.79 and 38,981.41 is: 58,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,866.05 : 176,781.79 = 38,981.41 : x
  2. Step 2: Convert to fraction form
    117,866.05/176,781.79 = 38,981.41/x
  3. Step 3: Cross multiply
    117,866.05x = 176,781.79 × 38,981.41
  4. Step 4: Simplify right side
    117,866.05x = 6,891,203,043.30
  5. Step 5: Solve for x
    x = 6,891,203,043.30/117,866.05
  6. Step 6: Final answer
    x = 58,466.40

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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.