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Finding the Fourth Proportional to 66,751.87, 92,116.80 and 36,124.25

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Solution

The fourth proportional to 66,751.87, 92,116.80 and 36,124.25 is: 49,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.87 : 92,116.80 = 36,124.25 : x
  2. Step 2: Convert to fraction form
    66,751.87/92,116.80 = 36,124.25/x
  3. Step 3: Cross multiply
    66,751.87x = 92,116.80 × 36,124.25
  4. Step 4: Simplify right side
    66,751.87x = 3,327,650,131.78
  5. Step 5: Solve for x
    x = 3,327,650,131.78/66,751.87
  6. Step 6: Final answer
    x = 49,851.04

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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.