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Finding the Fourth Proportional to 66,998.28, 100,366.77 and 37,326.77

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Solution

The fourth proportional to 66,998.28, 100,366.77 and 37,326.77 is: 55,917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,998.28 : 100,366.77 = 37,326.77 : x
  2. Step 2: Convert to fraction form
    66,998.28/100,366.77 = 37,326.77/x
  3. Step 3: Cross multiply
    66,998.28x = 100,366.77 × 37,326.77
  4. Step 4: Simplify right side
    66,998.28x = 3,746,366,837.60
  5. Step 5: Solve for x
    x = 3,746,366,837.60/66,998.28
  6. Step 6: Final answer
    x = 55,917.36

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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.