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Finding the Fourth Proportional to 118,883.50, 178,199.57 and 43,955.53

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Solution

The fourth proportional to 118,883.50, 178,199.57 and 43,955.53 is: 65,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.50 : 178,199.57 = 43,955.53 : x
  2. Step 2: Convert to fraction form
    118,883.50/178,199.57 = 43,955.53/x
  3. Step 3: Cross multiply
    118,883.50x = 178,199.57 × 43,955.53
  4. Step 4: Simplify right side
    118,883.50x = 7,832,856,325.34
  5. Step 5: Solve for x
    x = 7,832,856,325.34/118,883.50
  6. Step 6: Final answer
    x = 65,886.82

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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.