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Finding the Fourth Proportional to 115,893.70, 173,529.10 and 73,544.50

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Solution

The fourth proportional to 115,893.70, 173,529.10 and 73,544.50 is: 110,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,893.70 : 173,529.10 = 73,544.50 : x
  2. Step 2: Convert to fraction form
    115,893.70/173,529.10 = 73,544.50/x
  3. Step 3: Cross multiply
    115,893.70x = 173,529.10 × 73,544.50
  4. Step 4: Simplify right side
    115,893.70x = 12,762,110,894.95
  5. Step 5: Solve for x
    x = 12,762,110,894.95/115,893.70
  6. Step 6: Final answer
    x = 110,119.11

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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.