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Finding the Fourth Proportional to 58,121.69, 80,187.28 and 37,990.17

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Solution

The fourth proportional to 58,121.69, 80,187.28 and 37,990.17 is: 52,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,121.69 : 80,187.28 = 37,990.17 : x
  2. Step 2: Convert to fraction form
    58,121.69/80,187.28 = 37,990.17/x
  3. Step 3: Cross multiply
    58,121.69x = 80,187.28 × 37,990.17
  4. Step 4: Simplify right side
    58,121.69x = 3,046,328,304.06
  5. Step 5: Solve for x
    x = 3,046,328,304.06/58,121.69
  6. Step 6: Final answer
    x = 52,412.94

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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.