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Finding the Fourth Proportional to 66,374.67, 91,596.68 and 36,159.92

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Solution

The fourth proportional to 66,374.67, 91,596.68 and 36,159.92 is: 49,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374.67 : 91,596.68 = 36,159.92 : x
  2. Step 2: Convert to fraction form
    66,374.67/91,596.68 = 36,159.92/x
  3. Step 3: Cross multiply
    66,374.67x = 91,596.68 × 36,159.92
  4. Step 4: Simplify right side
    66,374.67x = 3,312,128,163.08
  5. Step 5: Solve for x
    x = 3,312,128,163.08/66,374.67
  6. Step 6: Final answer
    x = 49,900.48

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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.