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Finding the Fourth Proportional to 66,314.85, 91,513.53 and 36,100.41

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Solution

The fourth proportional to 66,314.85, 91,513.53 and 36,100.41 is: 49,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,314.85 : 91,513.53 = 36,100.41 : x
  2. Step 2: Convert to fraction form
    66,314.85/91,513.53 = 36,100.41/x
  3. Step 3: Cross multiply
    66,314.85x = 91,513.53 × 36,100.41
  4. Step 4: Simplify right side
    66,314.85x = 3,303,675,953.55
  5. Step 5: Solve for x
    x = 3,303,675,953.55/66,314.85
  6. Step 6: Final answer
    x = 49,818.04

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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.