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Finding the Fourth Proportional to 66,792.88, 92,079.18 and 41,284.81

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Solution

The fourth proportional to 66,792.88, 92,079.18 and 41,284.81 is: 56,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,792.88 : 92,079.18 = 41,284.81 : x
  2. Step 2: Convert to fraction form
    66,792.88/92,079.18 = 41,284.81/x
  3. Step 3: Cross multiply
    66,792.88x = 92,079.18 × 41,284.81
  4. Step 4: Simplify right side
    66,792.88x = 3,801,471,451.26
  5. Step 5: Solve for x
    x = 3,801,471,451.26/66,792.88
  6. Step 6: Final answer
    x = 56,914.32

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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.