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Finding the Fourth Proportional to 118,163.16, 177,192.90 and 43,263.90

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Solution

The fourth proportional to 118,163.16, 177,192.90 and 43,263.90 is: 64,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,163.16 : 177,192.90 = 43,263.90 : x
  2. Step 2: Convert to fraction form
    118,163.16/177,192.90 = 43,263.90/x
  3. Step 3: Cross multiply
    118,163.16x = 177,192.90 × 43,263.90
  4. Step 4: Simplify right side
    118,163.16x = 7,666,055,906.31
  5. Step 5: Solve for x
    x = 7,666,055,906.31/118,163.16
  6. Step 6: Final answer
    x = 64,876.87

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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.