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Finding the Fourth Proportional to 118,773.07, 178,128.45 and 43,914.62

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Solution

The fourth proportional to 118,773.07, 178,128.45 and 43,914.62 is: 65,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,773.07 : 178,128.45 = 43,914.62 : x
  2. Step 2: Convert to fraction form
    118,773.07/178,128.45 = 43,914.62/x
  3. Step 3: Cross multiply
    118,773.07x = 178,128.45 × 43,914.62
  4. Step 4: Simplify right side
    118,773.07x = 7,822,443,638.26
  5. Step 5: Solve for x
    x = 7,822,443,638.26/118,773.07
  6. Step 6: Final answer
    x = 65,860.42

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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.