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Finding the Fourth Proportional to 114,669.90, 158,267.75 and 66,273.90

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Solution

The fourth proportional to 114,669.90, 158,267.75 and 66,273.90 is: 91,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,669.90 : 158,267.75 = 66,273.90 : x
  2. Step 2: Convert to fraction form
    114,669.90/158,267.75 = 66,273.90/x
  3. Step 3: Cross multiply
    114,669.90x = 158,267.75 × 66,273.90
  4. Step 4: Simplify right side
    114,669.90x = 10,489,020,705.36
  5. Step 5: Solve for x
    x = 10,489,020,705.36/114,669.90
  6. Step 6: Final answer
    x = 91,471.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.