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Finding the Fourth Proportional to 54,249, 81,373.98 and 19,194.60

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Solution

The fourth proportional to 54,249, 81,373.98 and 19,194.60 is: 28,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,249 : 81,373.98 = 19,194.60 : x
  2. Step 2: Convert to fraction form
    54,249/81,373.98 = 19,194.60/x
  3. Step 3: Cross multiply
    54,249x = 81,373.98 × 19,194.60
  4. Step 4: Simplify right side
    54,249x = 1,561,940,996.51
  5. Step 5: Solve for x
    x = 1,561,940,996.51/54,249
  6. Step 6: Final answer
    x = 28,792.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.