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Finding the Fourth Proportional to 66,468, 91,726.08 and 41,317.44

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Solution

The fourth proportional to 66,468, 91,726.08 and 41,317.44 is: 57,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468 : 91,726.08 = 41,317.44 : x
  2. Step 2: Convert to fraction form
    66,468/91,726.08 = 41,317.44/x
  3. Step 3: Cross multiply
    66,468x = 91,726.08 × 41,317.44
  4. Step 4: Simplify right side
    66,468x = 3,789,886,806.84
  5. Step 5: Solve for x
    x = 3,789,886,806.84/66,468
  6. Step 6: Final answer
    x = 57,018.22

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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.