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Finding the Fourth Proportional to 115,916.68, 173,563.54 and 73,567.48

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Solution

The fourth proportional to 115,916.68, 173,563.54 and 73,567.48 is: 110,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.68 : 173,563.54 = 73,567.48 : x
  2. Step 2: Convert to fraction form
    115,916.68/173,563.54 = 73,567.48/x
  3. Step 3: Cross multiply
    115,916.68x = 173,563.54 × 73,567.48
  4. Step 4: Simplify right side
    115,916.68x = 12,768,632,257.68
  5. Step 5: Solve for x
    x = 12,768,632,257.68/115,916.68
  6. Step 6: Final answer
    x = 110,153.54

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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.