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Finding the Fourth Proportional to 118,883.25, 178,199.19 and 43,955.28

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Solution

The fourth proportional to 118,883.25, 178,199.19 and 43,955.28 is: 65,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.25 : 178,199.19 = 43,955.28 : x
  2. Step 2: Convert to fraction form
    118,883.25/178,199.19 = 43,955.28/x
  3. Step 3: Cross multiply
    118,883.25x = 178,199.19 × 43,955.28
  4. Step 4: Simplify right side
    118,883.25x = 7,832,795,292.22
  5. Step 5: Solve for x
    x = 7,832,795,292.22/118,883.25
  6. Step 6: Final answer
    x = 65,886.45

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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.