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Finding the Fourth Proportional to 54,632.80, 81,968.40 and 52,712.80

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Solution

The fourth proportional to 54,632.80, 81,968.40 and 52,712.80 is: 79,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,632.80 : 81,968.40 = 52,712.80 : x
  2. Step 2: Convert to fraction form
    54,632.80/81,968.40 = 52,712.80/x
  3. Step 3: Cross multiply
    54,632.80x = 81,968.40 × 52,712.80
  4. Step 4: Simplify right side
    54,632.80x = 4,320,783,875.52
  5. Step 5: Solve for x
    x = 4,320,783,875.52/54,632.80
  6. Step 6: Final answer
    x = 79,087.73

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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.