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Finding the Fourth Proportional to 118,878.26, 178,191.68 and 43,950.28

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Solution

The fourth proportional to 118,878.26, 178,191.68 and 43,950.28 is: 65,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,878.26 : 178,191.68 = 43,950.28 : x
  2. Step 2: Convert to fraction form
    118,878.26/178,191.68 = 43,950.28/x
  3. Step 3: Cross multiply
    118,878.26x = 178,191.68 × 43,950.28
  4. Step 4: Simplify right side
    118,878.26x = 7,831,574,229.67
  5. Step 5: Solve for x
    x = 7,831,574,229.67/118,878.26
  6. Step 6: Final answer
    x = 65,878.94

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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.