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Finding the Fourth Proportional to 64,494.36, 88,759.80 and 54,553.23

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Solution

The fourth proportional to 64,494.36, 88,759.80 and 54,553.23 is: 75,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.36 : 88,759.80 = 54,553.23 : x
  2. Step 2: Convert to fraction form
    64,494.36/88,759.80 = 54,553.23/x
  3. Step 3: Cross multiply
    64,494.36x = 88,759.80 × 54,553.23
  4. Step 4: Simplify right side
    64,494.36x = 4,842,133,784.15
  5. Step 5: Solve for x
    x = 4,842,133,784.15/64,494.36
  6. Step 6: Final answer
    x = 75,078.41

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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.