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Finding the Fourth Proportional to 55,185, 76,155.30 and 30,034.68

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Solution

The fourth proportional to 55,185, 76,155.30 and 30,034.68 is: 41,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,185 : 76,155.30 = 30,034.68 : x
  2. Step 2: Convert to fraction form
    55,185/76,155.30 = 30,034.68/x
  3. Step 3: Cross multiply
    55,185x = 76,155.30 × 30,034.68
  4. Step 4: Simplify right side
    55,185x = 2,287,300,065.80
  5. Step 5: Solve for x
    x = 2,287,300,065.80/55,185
  6. Step 6: Final answer
    x = 41,447.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.