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Finding the Fourth Proportional to 55,056.56, 75,978.08 and 29,906.08

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Solution

The fourth proportional to 55,056.56, 75,978.08 and 29,906.08 is: 41,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,056.56 : 75,978.08 = 29,906.08 : x
  2. Step 2: Convert to fraction form
    55,056.56/75,978.08 = 29,906.08/x
  3. Step 3: Cross multiply
    55,056.56x = 75,978.08 × 29,906.08
  4. Step 4: Simplify right side
    55,056.56x = 2,272,206,538.73
  5. Step 5: Solve for x
    x = 2,272,206,538.73/55,056.56
  6. Step 6: Final answer
    x = 41,270.41

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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.