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Finding the Fourth Proportional to 178,339.88, 267,544.77 and 66,021.02

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Solution

The fourth proportional to 178,339.88, 267,544.77 and 66,021.02 is: 99,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,339.88 : 267,544.77 = 66,021.02 : x
  2. Step 2: Convert to fraction form
    178,339.88/267,544.77 = 66,021.02/x
  3. Step 3: Cross multiply
    178,339.88x = 267,544.77 × 66,021.02
  4. Step 4: Simplify right side
    178,339.88x = 17,663,579,905.36
  5. Step 5: Solve for x
    x = 17,663,579,905.36/178,339.88
  6. Step 6: Final answer
    x = 99,044.48

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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.