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Finding the Fourth Proportional to 66,751.79, 92,116.69 and 36,124.17

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Solution

The fourth proportional to 66,751.79, 92,116.69 and 36,124.17 is: 49,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.79 : 92,116.69 = 36,124.17 : x
  2. Step 2: Convert to fraction form
    66,751.79/92,116.69 = 36,124.17/x
  3. Step 3: Cross multiply
    66,751.79x = 92,116.69 × 36,124.17
  4. Step 4: Simplify right side
    66,751.79x = 3,327,639,232.14
  5. Step 5: Solve for x
    x = 3,327,639,232.14/66,751.79
  6. Step 6: Final answer
    x = 49,850.94

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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.