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Finding the Fourth Proportional to 118,814.66, 178,227.39 and 66,184.46

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Solution

The fourth proportional to 118,814.66, 178,227.39 and 66,184.46 is: 99,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,814.66 : 178,227.39 = 66,184.46 : x
  2. Step 2: Convert to fraction form
    118,814.66/178,227.39 = 66,184.46/x
  3. Step 3: Cross multiply
    118,814.66x = 178,227.39 × 66,184.46
  4. Step 4: Simplify right side
    118,814.66x = 11,795,883,564.36
  5. Step 5: Solve for x
    x = 11,795,883,564.36/118,814.66
  6. Step 6: Final answer
    x = 99,279.70

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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.