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Finding the Fourth Proportional to 118,287.66, 177,325.98 and 43,390.29

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Solution

The fourth proportional to 118,287.66, 177,325.98 and 43,390.29 is: 65,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,287.66 : 177,325.98 = 43,390.29 : x
  2. Step 2: Convert to fraction form
    118,287.66/177,325.98 = 43,390.29/x
  3. Step 3: Cross multiply
    118,287.66x = 177,325.98 × 43,390.29
  4. Step 4: Simplify right side
    118,287.66x = 7,694,225,696.73
  5. Step 5: Solve for x
    x = 7,694,225,696.73/118,287.66
  6. Step 6: Final answer
    x = 65,046.73

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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.