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Finding the Fourth Proportional to 118,896, 178,218.30 and 43,968.08

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Solution

The fourth proportional to 118,896, 178,218.30 and 43,968.08 is: 65,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,896 : 178,218.30 = 43,968.08 : x
  2. Step 2: Convert to fraction form
    118,896/178,218.30 = 43,968.08/x
  3. Step 3: Cross multiply
    118,896x = 178,218.30 × 43,968.08
  4. Step 4: Simplify right side
    118,896x = 7,835,916,471.86
  5. Step 5: Solve for x
    x = 7,835,916,471.86/118,896
  6. Step 6: Final answer
    x = 65,905.64

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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.