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Finding the Fourth Proportional to 118,491.35, 177,719.45 and 43,593.98

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Solution

The fourth proportional to 118,491.35, 177,719.45 and 43,593.98 is: 65,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,491.35 : 177,719.45 = 43,593.98 : x
  2. Step 2: Convert to fraction form
    118,491.35/177,719.45 = 43,593.98/x
  3. Step 3: Cross multiply
    118,491.35x = 177,719.45 × 43,593.98
  4. Step 4: Simplify right side
    118,491.35x = 7,747,497,042.34
  5. Step 5: Solve for x
    x = 7,747,497,042.34/118,491.35
  6. Step 6: Final answer
    x = 65,384.50

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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.