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Finding the Fourth Proportional to 118,887.52, 178,342.28 and 43,005.04

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Solution

The fourth proportional to 118,887.52, 178,342.28 and 43,005.04 is: 64,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,887.52 : 178,342.28 = 43,005.04 : x
  2. Step 2: Convert to fraction form
    118,887.52/178,342.28 = 43,005.04/x
  3. Step 3: Cross multiply
    118,887.52x = 178,342.28 × 43,005.04
  4. Step 4: Simplify right side
    118,887.52x = 7,669,616,885.09
  5. Step 5: Solve for x
    x = 7,669,616,885.09/118,887.52
  6. Step 6: Final answer
    x = 64,511.54

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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.