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Finding the Fourth Proportional to 168,735.32, 253,172.84 and 73,916.52

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Solution

The fourth proportional to 168,735.32, 253,172.84 and 73,916.52 is: 110,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.32 : 253,172.84 = 73,916.52 : x
  2. Step 2: Convert to fraction form
    168,735.32/253,172.84 = 73,916.52/x
  3. Step 3: Cross multiply
    168,735.32x = 253,172.84 × 73,916.52
  4. Step 4: Simplify right side
    168,735.32x = 18,713,655,291.32
  5. Step 5: Solve for x
    x = 18,713,655,291.32/168,735.32
  6. Step 6: Final answer
    x = 110,905.38

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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.