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Finding the Fourth Proportional to 83,753.53, 115,527.99 and 55,076.47

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Solution

The fourth proportional to 83,753.53, 115,527.99 and 55,076.47 is: 75,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,753.53 : 115,527.99 = 55,076.47 : x
  2. Step 2: Convert to fraction form
    83,753.53/115,527.99 = 55,076.47/x
  3. Step 3: Cross multiply
    83,753.53x = 115,527.99 × 55,076.47
  4. Step 4: Simplify right side
    83,753.53x = 6,362,873,875.40
  5. Step 5: Solve for x
    x = 6,362,873,875.40/83,753.53
  6. Step 6: Final answer
    x = 75,971.41

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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.