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Finding the Fourth Proportional to 66,554.43, 91,844.66 and 36,339.74

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Solution

The fourth proportional to 66,554.43, 91,844.66 and 36,339.74 is: 50,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.43 : 91,844.66 = 36,339.74 : x
  2. Step 2: Convert to fraction form
    66,554.43/91,844.66 = 36,339.74/x
  3. Step 3: Cross multiply
    66,554.43x = 91,844.66 × 36,339.74
  4. Step 4: Simplify right side
    66,554.43x = 3,337,610,938.63
  5. Step 5: Solve for x
    x = 3,337,610,938.63/66,554.43
  6. Step 6: Final answer
    x = 50,148.59

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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.