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Finding the Fourth Proportional to 117,819.82, 176,762.67 and 38,989.54

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Solution

The fourth proportional to 117,819.82, 176,762.67 and 38,989.54 is: 58,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,819.82 : 176,762.67 = 38,989.54 : x
  2. Step 2: Convert to fraction form
    117,819.82/176,762.67 = 38,989.54/x
  3. Step 3: Cross multiply
    117,819.82x = 176,762.67 × 38,989.54
  4. Step 4: Simplify right side
    117,819.82x = 6,891,895,192.47
  5. Step 5: Solve for x
    x = 6,891,895,192.47/117,819.82
  6. Step 6: Final answer
    x = 58,495.21

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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.