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Finding the Fourth Proportional to 66,809.95, 100,371.69 and 63,027.05

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Solution

The fourth proportional to 66,809.95, 100,371.69 and 63,027.05 is: 94,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,809.95 : 100,371.69 = 63,027.05 : x
  2. Step 2: Convert to fraction form
    66,809.95/100,371.69 = 63,027.05/x
  3. Step 3: Cross multiply
    66,809.95x = 100,371.69 × 63,027.05
  4. Step 4: Simplify right side
    66,809.95x = 6,326,131,022.36
  5. Step 5: Solve for x
    x = 6,326,131,022.36/66,809.95
  6. Step 6: Final answer
    x = 94,688.46

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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.