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Finding the Fourth Proportional to 66,525.63, 91,805.37 and 45,341.90

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Solution

The fourth proportional to 66,525.63, 91,805.37 and 45,341.90 is: 62,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525.63 : 91,805.37 = 45,341.90 : x
  2. Step 2: Convert to fraction form
    66,525.63/91,805.37 = 45,341.90/x
  3. Step 3: Cross multiply
    66,525.63x = 91,805.37 × 45,341.90
  4. Step 4: Simplify right side
    66,525.63x = 4,162,629,679.29
  5. Step 5: Solve for x
    x = 4,162,629,679.29/66,525.63
  6. Step 6: Final answer
    x = 62,571.82

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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.